Trang 1 THI TH TUYN SINH I HC, CAO NG NM 2011 Mn thi : HO 50 cu, thi gian: 90 pht. Cho bit khi lng nguyn t (theo vC) ca cc nguyn t : H = 1; Li = 7; C = 12; N = 14; O = 16; Na = 23; Mg = 24; Al = 27; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Fe = 56; Cu = 64; Zn = 65; As = 75 ; Br = 80; Rb = 85,5; Ag = 108; Ba = 137. S 11 1. Pht biu no di y khng ng? A. Nguyn t c cu thnh t cc ht c bn l proton, ntron v electron. B. Ht nhn nguyn t c cu thnh t cc ht proton v ntron. C. V nguyn t c cu thnh bi cc ht electron. D. Nguyn t c cu trc c kht, gm v nguyn t v ht nhn nguyn t. 2. Nguyn t nguyn t R c tng s ht bng 34, trong s ht mang in nhiu hn s ht khng mang in l 10 ht. K hiu v v tr ca R (chu k, nhm) trong bng tun hon l A. Na, chu k 3, nhm IA. B. Mg, chu k 3, nhm IIA. C. F, chu k 2, nhm VIIA. D. Ne, chu k 2, nhm VIIIA. 3. Cc nguyn t X (Z = 8), Y (Z = 16), T (Z = 19), G (Z = 20) c th to c ti a bao nhiu hp cht ion v hp cht cng ha tr ch gm 2 nguyn t? (ch xt cc hp cht hc trong chng trnh ph thng) A. Ba hp cht ion v ba hp cht cng ha tr. B. Hai hp cht ion v bn hp cht cng ho tr. C. Nm hp cht ion v mt hp cht cng ha tr D. Bn hp cht ion v hai hp cht cng ha tr. 4. Ion no di y khng c cu hnh electron ca kh him? A. Na+. B. Fe2+. C. Al3+. D. Cl . 5. Hy chn phng n ng trong cc dy cht no di y c sp xp theo chiu tng dn s phn cc lin kt trong phn t? A. HCl, Cl2, NaCl. B. NaCl, Cl2, HCl. C. Cl2, HCl, NaCl. D. Cl2, NaCl, HCl. 6. ng c th tc dng vi A. dung dch mui st (II) to thnh mui ng (II) v gii phng st. B. dung dch mui st (III) to thnh mui ng (II) v gii phng st. C. dung dch mui st (III) to thnh mui ng (II) v mui st (II). D. khng th tc dng vi dung dch mui st (III). 7. Cho phn ng sau: Mg + HNO3 Mg(NO3)2 + NO + NO2 + H2O. Nu t l s mol gia NO v NO2 l 2 : 1, th h s cn bng ca HNO3 trong phng trnh ha hc l A. 12. B. 30. C. 18. D. 20. 8. m gam phoi bo st (A) ngoi khng kh, sau mt thi gian bin thnh hn hp (B) c khi lng 12 gam gm Fe, FeO, Fe3O4, Fe2O3. Cho B tc dng hon ton vi dung dch HNO3 thy gii phng ra 2,24 lt kh NO duy nht (ktc). Gi tr ca m l bao nhiu? A. 11,8 gam. B. 10,08 gam. C. 9,8 gam. D. 8,8 gam. 9. Cho cc cht di y: H2O, HCl, NaOH, NaCl, CH3COOH, CuSO4. Cc cht in li yu l A. H2O, CH3COOH, CuSO4. B. CH3COOH, CuSO4. C. H2O, CH3COOH. D. H2O, NaCl, CH3COOH, CuSO4. 10. Theo thuyt axit - baz ca Bronstet, ion Al3+ trong nc c tnh cht A. axit. B. lng tnh. C. baz. D. trung tnh. 11. Cho phn ng:

Trang 2 2NO2 + 2NaOH NaNO2 + NaNO3 + H2O Hp th ht x mol NO2 vo dung dch cha x mol NaOH th dung dch thu c c gi tr A. pH = 7. B. pH > 7. C. pH = 0. D. pH < 7. 12. Cho dung dch cha x gam Ba(OH)2 vo dung dch cha x gam HCl. Dung dch thu c sau phn ng c mi trng A. axit. B. trung tnh. C. Baz. D. khng xc nh c. 13. Hy ch ra mnh khng chnh xc: A. Tt c cc mui AgX (X l halogen) u khng tan. B. Tt c hiro halogenua u tn ti th kh, iu kin thng. C. Tt c hiro halogenua khi tan vo nc u to thnh dung dch axit. D. Cc halogen (t F2 n I2) tc dng trc tip vi hu ht cc kim loi. 14. Phn ng no di y vit khng ng? A. Cl2 + Ca(OH)2 CaOCl2 + H2O t o , MnO 2 B. 2KClO3 2KCl + 3O2 to th ng C. Cl2 + 2KOH KCl + KClO + H2O to th ng D. 3Cl2 + 6KOH long 5KCl + KClO3 + 3H2O 15. C 5 gi bt mu tng t nhau l ca cc cht CuO, FeO, MnO2, Ag2O, (Fe + FeO). C th dng dung dch no trong cc dung dch di y phn bit cc cht trn? A. HNO3. B. AgNO3. C. HCl. D. Ba(OH)2. 16. Phng trnh ha hc no di y thng dng iu ch SO2 trong phng th nghim? to A. 4FeS2 + 11O2 2Fe2O3 + 8SO2t B. S + O2 SO2 C. 2H2S + 3O2 2SO2 + 2H2O D. Na2SO3 + H2SO4 Na2SO4 + H2O + SO2 17. Cc kh sinh ra khi cho saccaroz vo dung dch H2SO4 c, nng, d gm: A. H2S v CO2. B. H2S v SO2. C. SO3 v CO2. D. SO2 v CO2. 18. Axit sunfuric c thng c dng lm kh cc cht kh m. Kh no di y c th c lm kh nh axit sunfuric c? A. Kh CO2. B. Kh H2S. C. Kh NH3. D. Kh SO3. 19. HNO3 long khng th hin tnh oxi ho khi tc dng vi cht no di y? A. Fe. B. Fe(OH)2. C. FeO. D. Fe2O3. 20. nhn bit ion NO3 ngi ta thng dng Cu v dung dch H2SO4 long v un nng, bi v A. phn ng to ra dung dch c mu xanh v kh khng mi lm xanh giy qu m. B. phn ng to ra dung dch c mu vng nht. C. phn ng to ra kt ta mu xanh. D. phn ng to dung dch c mu xanh v kh khng mu ho nu trong khng kh. 21. Nung nng hon ton 27,3 gam hn hp NaNO3, Cu(NO3)2. Hn hp kh thot ra c dn vo nc d th thy c 1,12 lt kh (ktc) khng b hp th (lng O2 ho tan khng ng k). Khi lng Cu(NO3)2 trong hn hp ban u l A. 28,2 gam. B. 8,6 gam. C. 4,4 gam. D. 18,8 gam. 22. Cho cc kim loi Cu; Al; Fe; Au; Ag. Dy gm cc kim loi c sp xp theo chiu tng dn tnh dn in ca kim loi (t tri sang phi) l A. Fe, Au, Al, Cu, Ag. B. Fe, Al, Cu, Au, Ag. C. Fe, Al, Cu, Ag, Au. D. Al, Fe, Au, Ag, Cu. 23. Pht biu no di y khng ng v bn cht qu trnh ho hc in cc trong khi in phn: A. Anion nhng electron anot. B. Cation nhn electron catot. C. S oxi ho xy ra anot. D. S oxi ha xy ra catot.o

Trang 3 24. T phng trnh ion thu gn sau: Cu + 2Ag+ Cu2+ + 2Ag. Kt lun no di y khng ng? A. Cu2+ c tnh oxi ho mnh hn Ag+. B. Cu c tnh kh mnh hn Ag. C. Ag+ c tnh oxi ho mnh hn Cu2+. D. Cu b oxi ha bi ion Ag+. 25. Cho mt t bt Fe vo dung dch AgNO3 d, sau khi kt thc th nghim thu c dung dch X gm A. Fe(NO3)2, H2O. B. Fe(NO3)2, AgNO3 d. C. Fe(NO3)3, AgNO3 d. D. Fe(NO3)2, Fe(NO3)3, AgNO3. 26. Chia m gam hn hp mt mui clorua kim loi kim v BaCl2 thnh hai phn bng nhau: - Phn 1: Ha tan ht vo nc ri cho tc dng vi dung dch AgNO3 d thu c 8,61 gam kt ta. - Phn 2: em in phn nng chy hon ton thu c V lt kh anot (ktc). Gi tr ca V l A. 6,72 lt. B. 0,672 lt. C. 1,334 lt. D. 3,44 lt. 27. Ngm mt inh st sch trong 200ml dung dch CuSO4. Sau khi phn ng kt thc, ly inh st ra khi dung dch ra sch nh bng nc ct v sy kh ri em cn thy khi lng inh st tng 0,8 gam so vi ban u. Nng mol ca dung dch CuSO4 dng l gi tr no di y? A. 0,05M. B. 0,0625M. C. 0,50M. D. 0,625M. 28. Criolit c cng thc phn t l Na3AlF6 c thm vo Al2O3 trong qu trnh in phn Al2O3 nng chy sn xut nhm v l do chnh l A. lm gim nhit nng chy ca Al2O3, cho php in phn nhit thp, gip tit kim nng lng. B. lm tng dn in ca Al2O3 nng chy. C. to mt lp ngn cch bo v nhm nng chy khi b oxi ho. D. c A, B, C u ng 29. X, Y, Z l cc hp cht v c ca mt kim loi, khi t nng nhit cao u cho ngn la mu vng. X tc dng vi Y thnh Z. Nung nng Y nhit cao thu c Z, hi nc v kh E. Bit E l hp cht ca cacbon, E tc dng vi X cho Y hoc Z. X, Y, Z, E ln lt l cc cht no di y? A. NaOH, Na2CO3, NaHCO3, CO2. B. NaOH, NaHCO3, Na2CO3, CO2. C. KOH, KHCO3, CO2, K2CO3. D. NaOH, Na2CO3, CO2, NaHCO3. 30. Ho tan hon ton 23,8 gam hn hp mt mui cacbonat ca kim loi ho tr I v mt mui cacbonat ca kim loi ho tr II bng dung dch HCl thy thot ra 4,48 lt kh CO2 (ktc). C cn dung dch thu c sau phn ng th khi lng mui khan thu c l bao nhiu? A. 26,0 gam. B. 28,0 gam. C. 26,8 gam. D. 28,6 gam. 31. Trn 0,81 gam bt nhm vi bt Fe2O3 v CuO ri t nng tin hnh phn ng nhit nhm thu c hn hp A. Ho tan hon ton A trong dung dch HNO3 un nng thu c V lt kh NO (sn phm kh duy nht) ktc. Gi tr ca V l A. 0,224 lt. B. 0,672 lt. C. 2,24 lt. D. 6,72 lt. 32. Hirocacbon A c cng thc n gin nht l C2H5. Cng thc phn t ca A l A. C4H10. B. C6H15. C. C8H20. D. C2H5. 33. C bao nhiu ng phn cu to, mch h c cng thc phn t C5H8 tc dng vi H2 d (Ni, to) thu c sn phm l isopentan? A. 3. B. 4. C. 5. D. 6. 34. Cht hu c X c cng thc phn t C4H10O. S lng cc ng phn ca X c phn ng vi Na l A. 4. B. 5. C. 6. D. 7.

Trang 4 35. C bao nhiu ng phn c cng cng thc phn t C5H12O khi oxi ha bng CuO (to) to sn phm c phn ng trng gng? A. 2. B. 3. C. 4. D. 5. 36. C bao nhiu ng phn l hp cht thm c cng thc phn t C8H10O tc dng c vi Na, khng tc dng vi NaOH v khng lm mt mu dung dch Br2? A. 4. B. 5. C. 6. D. 7. 37. X l ancol no, a chc, mch h. Khi t chy hon ton 1 mol X cn 3,5 mol O 2. Vy cng thc ca X l A. C3H6(OH)2. B. C3H5(OH)3. C. C4H7(OH)3. D. C2H4(OH)2. 38. un 132,8 gam hn hp 3 ru no, n chc vi H2SO4 c 140oC thu c hn hp cc ete c s mol bng nhau v c khi lng l 111,2 gam. S mol ca mi ete trong hn hp l gi tr no sau y? A. 0,1 mol. B. 0,2 mol. C. 0,3 mol. D. 0,4 mol. 39. Thy phn este E c cng thc phn t C4H8O2 (c mt H2SO4 long) thu c hai sn phm hu c X, Y (ch cha cc nguyn t C, H, O). T X c th iu ch trc tip ra Y bng mt phn ng duy nht. Tn gi ca X l A. axit axetic. B. axit fomic. C. ancol etylic. D. etyl axetat. 40. Cho hn hp gm 0,1 mol HCOOH v 0,2 mol HCHO tc dng ht vi dung dch AgNO 3 trong NH3 th khi lng Ag thu c l bao nhiu? A. 108 gam. B. 10,8 gam. C. 216 gam. D. 64,8 gam. 41. Thu phn este X trong mi trng kim thu c ru etylic. Bit khi lng phn t ca ru bng 62,16% khi lng phn t ca este. X c cng thc cu to l A. HCOOCH3. B. HCOOC2H5. C. CH3COOC2H5. D. CH3COOCH3. 42. t chy hon ton a gam hn hp cc este no, n chc mch h. Sn phm chy c dn vo bnh ng dung dch Ca(OH)2 d thy khi lng bnh tng 12,4 gam. Khi lng kt ta to ra l A. 12,4 gam. B. 10 gam. C. 20 gam. D. 28,183 gam. 43. un nng ancol no, n chc A vi hn hp KBr v H2SO4 c thu c cht hu c Y (cha C, H, Br), trong Br chim 73,4% v khi lng. Cng thc phn t ca A l A. CH3OH. B. C2H5OH. C. C3H7OH. D. C4H9OH. 44. Nguyn t nguyn t X to ion X . Tng s ht (p, n, e) trong X bng 116. X l nguyn t no di y? A. 34Se. B. 32Ge. C. 33As. D. 35Br. 45. t chy 6 gam este X thu c 4,48 lt CO2 (ktc) v 3,6 gam H2O. X c cng thc phn t l A. C5H10O2. B. C4H8O2. C. C3H6O2. D. C2H4O2. 46. Mt anehit no, mch h, khng phn nhnh c cng thc thc nghim l (C2H3O)n. Cng thc phn t ca X l A. C2H3O. B. C4H6O2. C. C6H9O3. D. C8H12O4. 47. Dung dch FeSO4 c ln tp cht CuSO4. C th dng cht no di y c th loi b c tp cht? A. Bt Fe d. B. Bt Cu d. C. Bt Al d. D. Na d. 48. Ho tan hon ton 104,25 gam hn hp X gm NaCl v NaI vo nc c dung dch A. Sc kh Cl2 d vo dung dch A. Kt thc th nghim, c cn dung dch thu c 58,5g mui khan. Khi lng NaCl c trong hn hp X l A. 29,25 gam. B. 58,5 gam. C. 17,55 gam. D. 23,4 gam. 49. Ch dng ha cht no di y phn bit hai ng phn khc chc c cng cng thc phn t C3H8O? A. Al. B. Cu(OH)2. C. Dung dch AgNO3/NH3. D. CuO. 50. Polime c tn l polipropilen c cu to mch nh sau:

Trang 5 CH2 CH CH2 CH CH2 CH CH2 CH CH2

CH3Cng thc chung ca polime l

CH3B.

CH3

CH3

A.C.

CH2 nCH2 CH CH2 CH3 n

D.

CH2 CH CH3 n CH2 CH CH2 CH CH2 CH3 CH3 n

P N 11: 1. D 2. A 3. A 4. B 5. C

6. C 7. D 8. B 9. C 10. A

11. B 12. A 13. A 14. D 15. C

16. D 17. D 18. A 19. D 20. D

21. D 22. B 23. D 24. A 25. C

26. B 27. C 28. D 29. B 30. A

31. D 32. A 33. A 34. A 35. C

36. B 37. B 38. B 39. C 40. A

41. B 42. C 43. B 44. D 45. D

46. B 47. A 48. A 49. D 50. B

S 12 51. Ha tan 9,14 gam hp kim Cu, Mg, Al bng mt lng va dung dch HCl thu c 7,84 lt kh X (ktc) v 2,54 gam cht rn Y v dung dch Z. Lc b cht rn Y, c cn cn thn dung dch Z thu c lng mui khan l A. 31,45 gam. B. 33,99 gam. C. 19,025 gam. D. 56,3 gam. 52. Ho tan hon ton m gam Al vo dung dch HNO 3 rt long th thu c hn hp gm 0,015 mol kh N2O v 0,01mol kh NO (phn ng khng to NH4NO3). Gi tr ca m l A. 13,5 gam. B. 1,35 gam. C. 0,81 gam. D. 8,1 gam 53. Hp cht hu c X, mch h (cha C, H, N), trong nit chim 23,73% v khi lng. Bit X tc dng vi HCl vi t l s mol nX :nHCl = 1:1. Cng thc phn t ca X l A. C2H7N. B. C3H7N. C. C3H9N. D. C4H11N. 54. t chy 6 gam este X thu c 4,48 lt CO2 (ktc) v 3,6 gam H2O. X c cng thc phn t no di y? A. C5H10O2. B. C4H8O2. C. C3H6O2. D. C2H4O2. 55. Cho hai mui X, Y tha mn iu kin sau: X + Y khng xy ra phn ng X + Cu khng xy ra phn ng Y + Cu khng xy ra phn ng X + Y + Cu xy ra phn ng X, Y l mui no di y? A. NaNO3 v NaHCO3. B. NaNO3 v NaHSO4. C. Fe(NO3)3 v NaHSO4. D. Mg(NO3)2 v KNO3. 56. Cho hn hp gm Fe v FeS tc dng vi dung dch HCl d thu c 2,24 lt hn hp kh iu kin tiu chun. Hn hp kh ny c t khi so vi hiro l 9. Thnh phn % theo s mol ca hn hp Fe v FeS ban u ln lt l A. 40% v 60%. B. 50% v 50%. C. 35% v 65%. D. 45% v 55%. 57. Cho m gam Cu phn ng ht vi dung dch HNO3 thu c 8,96 lt (ktc) hn hp kh NO v NO2 c khi lng l 15,2 gam. Gi tr ca m l A. 25,6 gam. B. 16 gam. C. 2,56 gam. D. 8 gam. 58. Pht biu no di y khng ng v bn cht qu trnh ho hc in cc trong khi in phn? A. Anion nhng electron anot. B. Cation nhn electron catot.

Trang 6 C. S oxi ho xy ra anot. D. S oxi ha xy ra catot. 59. Hai este A, B l dn xut ca benzen c cng thc phn t l C9H8O2. A v B u cng hp vi brom theo t l mol l 1 : 1. A tc dng vi dung dch NaOH cho mt mui v mt anehit. B tc dng vi dung dch NaOH d cho 2 mui v nc, cc mui u c phn t khi ln hn phn t khi ca CH3COONa. Cng thc cu to ca A v B ln lt l cc cht no di y? A. HOOC 6H4 C CH=CH2 v CH2=CH COOC6H5 B. C6H5COOCH=CH2 v C6H5 CH=CH COOH C. HCOOC6H4CH=CH2 v HCOOCH=CH 6H5 C D. C6H5COOCH=CH2 v CH2=CH COOC6H5 60. Hn hp X gm hai kim loi A v B ng trc H trong dy in ha v c ha tr khng i trong cc hp cht. Chia m gam X thnh hai phn bng nhau: - Phn 1: Ha tan hon ton trong dung dch cha axit HCl v H2SO4 long to ra 3,36 lt kh H2. - Phn 2: Tc dng hon ton vi dung dch HNO3 thu c V lt kh NO (sn phm kh duy nht). Bit cc th tch kh o ktc. Gi tr ca V l A. 2,24 lt. B. 3,36 lt. C. 4,48 lt. D. 6,72 lt. 61. Ha tan hon ton hn hp X gm 0,4 mol FeO v 0,1mol Fe2O3 vo dung dch HNO3 long, d thu c dung dch A v kh B khng mu, ha nu trong khng kh. Dung dch A cho tc dng vi dung dch NaOH d thu c kt ta. Ly ton b kt ta nung trong khng kh n khi lng khng i thu c cht rn c khi lng l A. 23,0 gam. B. 32,0 gam. C. 16,0 gam. D. 48,0 gam. 62. Cho cc cht: CH3NH2, C6H5NH2, (CH3)2NH, (C6H5)2NH v NH3. Trt t tng dn tnh baz (theo chiu t tri qua phi) ca 5 cht trn l A. (C6H5)2NH, NH3, (CH3)2NH, C6H5NH2, CH3NH2 B. (C6H5)2NH, C6H5NH2, NH3, CH3NH2, (CH3)2NH C. (C6H5)2NH, NH3, C6H5NH2, CH3NH2, (CH3)2NH D. C6H5NH2, (C6H5)2NH, NH3, CH3NH2, (CH3)2NH. 63. Ho tan hon ton 19,2 gam Cu bng dung dch HNO3, ton b lng kh NO thu c em oxi ho thnh NO2 ri chuyn ht thnh HNO3. Th tch kh oxi (ktc) tham gia vo qu trnh trn l gi tr no di y? A. 1,68 lt. B. 2,24 lt. C. 3,36 lt. D. 4,48 lt. 64. Cho kh CO i qua ng s cha 16 gam Fe2O3 un nng, sau phn ng thu c hn hp rn X gm Fe, FeO, Fe3O4, Fe2O3. Ha tan hon ton X bng H2SO4 c, nng thu c dung dch Y. C cn dung dch Y, lng mui khan thu c l A. 20 gam. B. 32 gam. C. 40 gam. D. 48 gam. 65. Thu phn C4H6O2 trong mi trng axit thu c hn hp hai cht u c phn ng trng gng. Cng thc cu to ca C4H6O2 l A. H3C C O CH CH2 B. H C O CH2 CH CH2 O O D. H2C HC C O CH3 C. H C O CH CH CH3 O O 66. C 4 dung dch khng mu ng trong 4 l mt nhn: NaCl, MgCl 2, AlCl3, FeCl2. C th dng kim loi no di y phn bit 4 dung dch trn (khng c s dng thm thuc th khc)? A. Na. B. Al. C. Fe. D. Ag. 67. Trong phng th nghim, kh CO2 c iu ch t CaCO3 v dung dch HCl thng b ln kh hiro clorua v hi nc. thu c CO2 gn nh tinh khit ngi ta dn hn hp kh ln lt qua hai bnh ng cc dung dch no trong cc dung dch di y. A. NaOH, H2SO4 c. B. NaHCO3, H2SO4 c. C. Na2CO3, NaCl . D. H2SO4 c, Na2CO3.

Trang 7 68. un nng 0,1 mol cht X vi lng va dung dch NaOH thu c 13,4 gam mui ca axit hu c a chc B v 9,2 gam ancol n chc D. Cho ton b lng ancol D bay hi 127oC v 600 mmHg s chim th tch 8,32 lt. Cng thc ca cht X l A. CH(COOCH3)3 B. H3C OOC 2 2 CH CH COO 3 CH C. C2H5 OOC COO 2H5 C D. C3H5 OOC COO 3H5 C 69. Cho s phn ng sau: + Cl2 , as + NaOH, t o + CuO, t o + dd AgNO3 / NH 3 Toluen X Y Z T 1 :1 Bit X, Y, Z, T l cc hp cht hu c v l nhng sn phm chnh. Cng thc cu to ng ca T l A. C6H5 COOH. B. CH3 6H4 C COONH4. C. C6H5 COONH4. D. p HOOC 6H4 C COONH4. 70. Theo nh ngha axit-baz ca Bronstet, cc cht v ion thuc dy no di y l lng tnh? A. CO32 , CH3COO . B. ZnO, Al2O3, HSO4 , NH4+. C. NH4+, HCO3 , CH3COO . D. ZnO, Al2O3, HCO3 , H2O. 71. t chy hon ton 0,1 mol hn hp hai axit cacboxylic l ng ng k tip thu c 3,36 lt CO2 (ktc) v 2,7 gam H2O. S mol ca mi axit ln lt l A. 0,05 mol v 0,05 mol. B. 0,045 mol v 0,055 mol. C. 0,04 mol v 0,06 mol. D. 0,06 mol v 0,04 mol. 3+ 2+ 2+ 72. Cho cc ion kim loi sau: Fe , Fe , Zn , Ni2+, H+, Ag+. Chiu tng dn tnh oxi ha ca cc ion l A. Zn2+, Fe2+, H+, Ni2+, Fe3+, Ag+. B. Zn2+, Fe2+, Ni2+, H+, Fe3+, Ag+. C. Zn2+, Fe2+, Ni2+, H+, Ag+, Fe3+. D. Fe2+, Zn2+, Ni2+, H+, Fe3+, Ag+. 73. Ho tan 25 gam CuSO4.5H2O vo nc ct c 500ml dung dch A. Gi tr gn ng pH v nng mol ca dung dch A l A. pH = 7; [CuSO4] = 0,20M. B. pH > 7; [CuSO4] = 0,3125M. C. pH < 7; [CuSO4] = 0,20M. D. pH > 7; [CuSO4] = 0,20M. 74. T l v s nguyn t ca 2 ng v A v B trong t nhin ca mt nguyn t X l 27 : 23. Trong ng v A c 35 proton v 44 ntron, ng v B c nhiu hn ng v A l 2 ntron. Nguyn t khi trung bnh ca nguyn t X l gi tr no di y? A. 79,92. B. 81,86. C. 80,01. D. 76,35. 75. Cht hu c X mch h, tn ti dng trans c cng thc phn t C 4H8O, X lm mt mu dung dch Br2 v tc dng vi Na gii phng kh H2. X ng vi cng thc phn t no sau y? A. CH2=CH 2 2 CH CH OH. B. CH3 CH=CH 2 CH OH. C. CH2=C(CH3) 2 CH OH. D. CH3 2 CH CH=CH OH. 76. Khi pha long dung dch CH3COOH 1M thnh dung dch CH3COOH 0,5M th A. in li tng. B. in li gim. C. in li khng i. D. in li tng 2 ln. 2 77. Anion X c cu hnh electron lp ngoi cng l 3s23p6. Tng s electron lp v ca X2 l bao nhiu? A. 18. B. 16. C. 9. D. 20. 78. Cho 7,28 gam kim loi M tc dng hon ton vi dung dch HCl, sau phn ng thu c 2,912 lt kh H2 27,3oC; 1,1 atm. M l kim loi no di y? A. Zn. B. Mg. C. Fe. D. Al. 79. Khi t chy polime X ch thu c kh CO2 v hi nc vi t l s mol tng ng l 1 : 1. X l polime no di y? A. Polipropilen (PP). B. Tinh bt. C. Poli(vinyl clorua) (PVC). D. Polistiren (PS).

Trang 8 80. Ancol X mch h c s nguyn t cacbon bng s nhm chc. Cho 9,3 gam ancol X tc dng vi Na d thu c 3,36 lt kh. Cng thc cu to ca X l A. CH3OH. B. CH2OHCHOHCH2OH. C. CH2OHCH2OH D. C2H5OH. 81. Trong mt chu k, theo chiu tng dn ca in tch ht nhn A. bn knh nguyn t gim dn, tnh kim loi tng dn. B. bn knh nguyn t gim dn, tnh phi kim tng dn. C. bn knh nguyn t tng dn, tnh phi kim tng dn. D. bn knh nguyn t tng dn, tnh phi kim gim dn. 82. t chy hai hirocacbon l ng ng lin tip ca nhau ta thu c 6,3 gam nc v 9,68 gam CO2. Cng thc phn t ca hai hirocacbon l A. C2H4 v C3H6. B. CH4 v C2H6. C. C2H6 v C3H8. D. Tt c u sai. 83. Ch dng mt thuc th no di y phn bit c etanal (anehit axetic), propan-2-on (axeton) v pent-1-in (pentin-1)? A. Dung dch brom. B. Dung dch AgNO3/NH3 d. C. Dung dch Na2CO3. D. H2 (Ni, to). 84. Cho phn ng sau: FeS + H2SO4 Fe2(SO4)3 + SO2 + H2O H s cn bng ca H2SO4 trong phng trnh ha hc l A. 8. B. 10. C. 12. D. 4. 85. Trong cc phng php lm mm nc, phng php ch kh c cng tm thi ca nc l A. phng php ha hc (s dng Na2CO3, Na3PO4). B. un nng nc cng. C. phng php lc. D. phng php trao i ion. 86. t chy hon ton hn hp hai amin bc mt, mch h, no, n chc, k tip nhau trong cng dy ng ng thu c CO2 v H2O vi t l s mol n CO2 : n H2O = 1: 2 . Hai amin c cng thc phn t ln lt l A. CH3NH2 v C2H5NH2. B. C2H5NH2 v C3H7NH2. C. C3H7NH2 v C4H9NH2. D. C4H9NH2 v C5H11NH2. 87. in phn 1 lt dung dch NaCl d vi in cc tr, mng ngn xp ti khi dung dch thu c c c pH = 12 (coi lng Cl2 tan v tc dng vi H2O khng ng k, th tch dung dch thay i khng ng k), th th tch kh thot ra anot (ktc) l bao nhiu? A. 1,12 lt. B. 0,224 lt. C. 0,112 lt. D. 0,336 lt. n CO2 = n H2O . Thy phn hon ton 6,0 gam este X cn va 88. Khi t chy hon ton mt este X cho dung dch cha 0,1 mol NaOH. Cng thc phn t ca este l A. C2H4O2. B. C3H6O2. C. C4H8O2. D. C5H10O2. 89. un nng 27,40 gam CH3CHBrCH2CH3 vi KOH d trong C2H5OH, sau khi phn ng xy ra hon ton thu c hn hp kh X gm hai olefin trong sn phm chnh chim 80%, sn phm ph chim 20%. t chy hon ton X thu c bao nhiu lt CO2 (ktc)? A. 4,48 lt. B. 8,96 lt. C. 11,20 lt. D. 17,92 lt. 90. C bao nhiu ng phn cu to ca amin c cng thc phn t C3H9N? A. 2. B. 3. C. 4. D. 5. 91. Cho dy chuyn ha sau:Br2 (dd ) 2 4 CH 3CH 2CHOHCH3 E F Bit E, F l sn phm chnh, cc cht phn ng vi nhau theo t l 1:1 v s mol. Cng thc cu to ca E v F ln lt l cp cht trong dy no sau y? A. CH3CH2CH=CH2, CH3CH2CHBrCH2Br. B. CH3CH=CHCH3, CH3CHBrCHBrCH3. C. CH3CH=CHCH3, CH3CH2CBr2CH3. H SO , 170 oC

Trang 9 D. CH3CH2CH=CH2, CH2BrCH2CH=CH2. 92. Phn t khi trung bnh ca PVC l 750.000. H s polime ha ca PVC l A. 12.000. B. 15.000. C. 24.000. D. 25.000. 93. Oxi ho 2,2 gam mt anehit n chc X thu c 3 gam axit tng ng (hiu sut phn ng bng 100%). X c cng thc cu to no di y? A. CH3CHO. B. C2H5CHO. C. CH3CH(CH3)CHO. D. CH3CH2CH2CHO. 94. Cho dung dch cha a mol Ca(HCO3)2 vo dung dch cha a mol Ca(HSO4)2. Hin tng quan st c l A. si bt kh. B. vn c. C. si bt kh v vn c. D. vn c, sau trong tr li. 95. Th tch dung dch HCl 0,3M cn trung ho 100ml dung dch hn hp NaOH 0,1M v Ba(OH)2 0,1M l A. 100 ml. B. 150 ml. C. 200 ml. D. 250 ml. 96. Hp th hon ton 4,48 lt SO2 (ktc) bng 0,3 mol NaOH. Khi lng mui khan thu c l A. 20,8 gam. B. 23,0 gam. C. 31,2 gam. D. 18,9 gam. 97. Kh hon ton 17,6 gam hn hp X gm Fe, FeO, Fe2O3 cn 2,24 lt CO ( ktc). Khi lng st thu c l A. 5,6 gam. B. 6,72 gam. C. 16,0 gam. D. 11,2 gam. 98. Cho hn hp X gm hai anehit l ng ng k tip tc dng ht vi H2 d (Ni, to) thu c hn hp hai ancol n chc. t chy hon ton hn hp hai ancol ny thu c 11 gam CO2 v 6,3 gam H2O. Cng thc ca hai anehit l A. C2H3CHO, C3H5CHO. B. C2H5CHO, C3H7CHO. C. C3H5CHO, C4H7CHO. D. CH3CHO, C2H5CHO. 99. Etilen c ln cc tp cht SO2, CO2, hi nc. C th loi b tp cht bng cch no di y? A. Dn hn hp i qua bnh ng dung dch brom d. B. Dn hn hp qua bnh ng dung dch natri clorua d. C. Dn hn hp ln lt qua bnh ng dung dch NaOH d v bnh ng CaO. D. Dn hn hp ln lt qua bnh ng dung dch brom d v bnh ng dung dch H2SO4 c. 100. Cho 2,84 gam hn hp X gm hai ancol n chc, l ng ng k tip nhau tc dng va vi Na to ra 4,6 gam cht rn v V lt kh H2 (ktc). V c gi tr l A. 2,24 lt. B. 1,12 lt. C. 1,792 lt. D. 0,896 lt.P N 12: 1. A 2. B 3. C 4. D 5. B 6. B 7. A 8. D 9. D 10. A 11. D 12. B 13. C 14. C 15. C 16. A 17. B 18. C 19. C 20. D 21. A 22. B 23. C 24. A 25. B 26. A 27. A 28. C 29. A 30. C 31. B 32. C 33. B 34. B 35. B 36. A 37. C 38. A 39. D 40. C 41. B 42. A 43. A 44. C 45. A 46. B 47. C 48. D 49. C 50. D

S 13 101. Trong mt cc nc c cha a mol Ca2+, b mol Mg2+, c mol Cl , d mol HCO3 . Biu thc lin h gia a, b, c, d l A. a + b = c + d. B. 3a + 3b = c + d. 1 C. 2a + 2b = c + d. D. (a + b) = c + d. 2 102. Cho cc ion v nguyn t: Ne (Z=10), Na+ (Z=11), F (Z=9) c c im no sau y l chung A. s khi. B. s proton. C. s electron. D. s ntron. 103. Dung dch dm n thng l

Trang 10 A. Dung dch axit axetic 0, 1% n 0, 3%. B. Dung dch axitmetanoic 2% n 4%. C. Dung dch axit acrylic 2% n 3%. D. Dung dch axit etanoic 2% n 5%. 104. A, B l cc kim loi hot ng ha tr (II), thuc hai chu k lin tip trong bng tun hon. Ha tan hn hp gm 23, 5 gam mui ccbonat ca A v 8, 4 gam mui cacbonat ca B bng dung dch HCl d sau c cn v in phn nng chy hon ton th thu c 11,8 gam hn hp kim loi catot v V lt kh anot. Hai kim loi A, B l A. Be v Mg. B. Mg v Ca. C. Sr v Ba. D. Ba v Ra. 105. Hy sp xp cc cp xi ha kh sau y theo th t tng dn tnh oxi ha ca cc ion kim loi: (1): Fe2+/Fe; (2): Pb2+ /Pb; (3): 2H+/ H2; (4): Ag+/Ag; (5): Na+/Na; (6): Fe3+/Fe2+; (7): Cu2+/Cu. A. (5) < (1) < (2) < (3) < (7) < (6) < (4). B. (4) < (6) < (7) < (3) < (2) < (1) < (5). C. (5) < (1) < (6) < (2) < (3) < (4) < (7). D. (5) < (1) < (2) < (6) < (3) < (7) < (4). 106. Mt anehit c cng thc thc nghim l (C4H4O3)n. Cng thc phn t ca anehit l A. C2H2O3. B. C4H4O3. C. C8H8O6. D. C12H12O9. 107. Cho s chuyn ha sau: A + HCl B + D B + Cl2 F E + NaOH H + NaNO3 A + HNO3 E + NO + D B + NaOH G + NaCl G + I + D H Cc cht A, G, H l A. CuO, CuOH v Cu(OH)2. B. FeO, Fe(OH)2 v Fe(OH)3. C. PbO, PbCl2 v Pb(OH)4. D. Cu, Cu(OH)2 v CuOH. 108. Khi cho 17, 4 gam hp kim Y gm st, ng, nhm phn ng ht vi H2SO4 long d ta thu c dung dch A; 6, 4 gam cht rn; 9, 856 lt kh B 27, 3C v 1 atm. Phn trm khi lng mi kim loi trong hp kim Y l A. Al 30%, Fe 50% v Cu 20%. B. Al 30%, Fe 32% v Cu 38%. C. Al : 31,03%, Fe 32,18% v Cu 36,78%. D. Al 25%, Fe 50% v Cu 25%. 109. Cho hn hp Y gm 2,8 gam Fe v 0,81 gam Al vo 200 ml dung dch C cha AgNO 3 v Cu(NO3)2. Khi phn ng kt thc, thu c dung dch D v 8,12 gam cht rn E gm 3 kim loi. Cho bit cht rn E tc dng vi dung dch HCl d th thu c 0,672 lt kh H2 ktc. Nng mol ca AgNO3 v Cu(NO3)2 trong dung dch C l A. 0,075M v 0,0125M. B. 0,3M v 0,5M. C. 0,15M v 0,25M. D. kt qu khc. 110. C 100 ml dung dch hn hp 2 axit H2SO4 v HCl c nng tng ng l 0,8M v1,2M. Thm vo 10 gam bt hn hp Fe, Mg, Zn. Sau phn ng xong, ly 1/2 lng kh sinh ra cho i qua ng s ng a gam CuO nung nng. Sau phn ng xong hon ton, trong ng cn li 14,08 gam cht rn. Khi lng a l A. 14,2 gam. B. 16,32 gam. C. 15,2 gam. D. 25,2 gam. 111. Nguyn t X thuc chu k 4 nhm VI, phn nhm ph c cu hnh e l A. 1s22s22p63s23p63d64s2. B. 1s22s22p63s23p63d104s24p4. C. 1s22s22p63s23p63d104s24d4. D. 1s22s22p63s23p63d54s1. 112. Cho bit sn phm chnh ca phn ng kh nc ca (CH3)2CHCH(OH)CH3? A. 2-metylbuten-1. B. 3-metyl buten-1. C. 2-metylbuten-2. D. 3-metyl buten-2.

Trang 11 113. Cho bit s ng phn no ca ru no, n chc t C3 n C5 khi tch nc khng to ra cc anken ng phn: A. C3H7OH : 2 ng phn; C4H9OH : 3 ng phn; C5H11OH : 3 ng phn. B. C3H7OH : 1 ng phn; C4H9OH : 4 ng phn; C5H11OH : 4 ng phn. C. C3H7OH : 3 ng phn; C4H9OH : 4 ng phn; C5H11OH : 3 ng phn. D. C3H7OH : 2 ng phn; C4H9OH : 3 ng phn; C5H11OH : 4 ng phn. 114. Trong dy ng ng ca ru n chc no, khi mch cacbon tng, ni chung A. si tng, kh nng tan trong nc tng. B. si tng, kh nng tan trong nc gim. C. si gim, kh nng tan trong nc tng. D. si gim, kh nng tan trong nc gim. 115. Hy sp xp cc cht sau y theo trt t tng dn tnh baz: p-X-C6H5-NH2 (cc dn xut ca anilin) vi X l (I) 2, (II) 3, (III) NO CH CH=O, (IV) H. A. I < II < III < IV. B. II < III < IV < I. C. I < III < IV < II. D. IV < III < I < II. 116. Nhit phn 1,88 gam Cu(NO3)2 ri hp th ton b lng kh sinh ra bng H2O thu c 2 lt dung dchA. Tip tc thm vo 100 ml dung dch X : 0,023 gam Na c dung dch B. pH ca dung dch A v B ln lt l A. 7-12,7. B. 2-7. C. 3-11. D. 2,2-12. 117. Xt cc loi hp cht hu c mch h sau: Ru n chc, no (A); anehit n chc, no (B); ru n chc khng no 1 ni i (C), anehit n chc, khng no 1 ni i (D). ng vi cng thc tng qut CnH2nO ch c 2 cht sau: A. A, B. B. B, C. C. C, D. D. A, D. 118. t chy mt hn hp cc cht thuc dy ng ng anehit thu c s mol CO 2 bng s mol H2O th l dy ng ng A. Anehit n chc no, mch h. B. Anehit vng no. C. Anehit hai chc no. D. Anehit khng no n chc 1 lin kt i. 119. Hp cht hu c X khi un nh vi dung dch AgNO3/NH3 (d) thu c sn phm Y, Y tc dng vi dung dch HCl cho kh v c A, vi dung dch NaOH ho kh v c B. X l A. HCHO. B. HCOOH. C. HCOONH4. D. C A, B, C u ng. 120. Cho 13,6 gam mt hp cht hu c X (C,H,O) tc dng va vi 300 ml dung dch AgNO3 2M trong NH4OH thu c 43,2 gam bc. Bit t khi hi ca X i vi oxi bng 2,125. Xc nh cng thc cu to ca X. A. CH3 2 CH CHO. B. CH2=CH 2 CH CHO. C. HC C 2 CH CHO. D. HC C CHO. 121. B tc phn ng sau: FeO + H+ + SO42 SO2 + A. FeSO4 + H2O. B. Fe2(SO4)3 + H2O. C. FeSO4 + Fe2(SO4)3 + H2O. D. Fe3+ + H2O. 122. Phn ng gia dung dch Kali pemanganat trong mi trng axit vi ion iodua c biu din bng phng trnh no di y? A. 2MnO4 + 5I +16H+ 2Mn2+ + 8H2O + 5I2 B. MnO4 + 10I +2H+ Mn2+ + H2O + 5I2 + 11e C. 2MnO4 + 10I- +16H+ 2Mn2+ + 8H2O + 5I2 D. MnO4 + 2I +8H+ Mn2+ + 4H2O + I2 123. Sp xp cc cht sau y theo trnh t gim dn nhit si: CH3COOH (1), HCOOCH3 (2), CH3CH2COOH (3),

Trang 12 CH3COOCH3 (4), CH3CH2CH2OH (5). A. (3) > (5) > (1) > (2) > (4). B. (1) > (3) > (4) > (5) > (2). C. (3) > (1) > (4) > (5) > (2). D. (3) > (1) > (5) > (4) > (2). 124. C 4 l ng 4 dung dch mt nhn l AlCl3, NaNO3, K2CO3, NH4NO3. Nu ch c php dng mt dung dch mt cht lm thuc th nhn bit th c th chn A. dd NaOH. B. dd H2SO4. C. dd Ba(OH)2. D. dd AgNO3. 125. Hai cht A v B cng c CTPT C9H8O2, cng l dn xut ca benzen, u lm mt mu dung dch nc Br2. A tc dng vi dung dch NaOH cho 1 mui v 1 anehit, B tc dng vi dung dch NaOH cho 2 mui v nc. Cc mui sinh ra u c khi lng phn t ln hn M ca CH3COONa. A v B tng ng l A. CH2=CH COO 6H5 ; HCOO 6H4 C C CH=CH2. B. C6H5 COO CH=CH2 ; CH2=CH COO 6H5. C C. HCOO CH=CH 6H5 ; HCOO 6H4 C C CH=CH2. D. C6H5 COO CH=CH2 ; HCOO 6H4 = CH2. C CH 126. Hn hp X gm 0,01 mol HCOONa v a mol mui natri ca hai axit no n chc l ng ng k tip. t chy hn hp X v cho sn phm (CO2, H2O)ln lt qua bnh 1 ng H2SO4c, bnh 2 ng KOH d, thy khi lng bnh 2 tng nhiu hn bnh 1 nhiu hn bnh mt l 3,51 gam. Phn cht rn Y cn li sau khi t l Na2CO3 cn nng 2,65 gam. Cng thc phn t ca hai mui natri l A. CH3COONa, C2H5COONa. B. C3H7COONa, C4H9COONa. C. C2H5COONa, C3H7COONa. D. kt qu khc. 127. T bo quang in c ch to t kim loi no trong cc kim loi sau: A. Na. B. Ca. C. Cs. D. Li. 128. Thy phn este E c cng thc phn t C4H8O2 vi xc tc axit v c long, thu c 2 sn phm hu c X, Y(ch cha nguyn t C, H, O). T X c th diu ch trc tip ra Y bng mt phn ng duy nht. Cht X l A. axit axetic. B. Ru etylic. C. Etyl axetat. D. Axit fomic. 129. C 2 hp cht hu c X, Y cha cc nguyn t C, H, O khi lng phn t u bng 74. Bit X tc dng c vi Na, c X, Y u tc dng c vi dung dch NaOH v dung dch AgNO 3 trong NH3. Vy X, Y c th l A. C4H9OH v HCOOC2H5. B. CH3COOCH3 v HOC2H4CHO. C. OHC COOH v C2H5COOH. D. OHC COOH v HCOOC2H5. 130. Cht no khng phn ng c vi Cu(OH)2: A. CH3COOH. B. HOCH2CH2OH. C. HOCH2CH2CH2OH. D. CH3CHO. 131. Cho s chuyn ha sau: 1. C3H4O2 + NaOH (A) + (B) 2. (A) + H2SO4 long (C) + (D) 3. (C) + AgNO3 + NH3 + H2O (E) + Ag +NH4NO3 4. (B) + AgNO3 + NH3 + H2O (F) + Ag +NH4NO3 Cc cht (B) v (C) theo th t c th l A. CH3CHO v HCOONa. B. CH3CHO v HCOOH. C. HCHO v HCOOH. D. HCHO v CH3CHO. 132. Hon thnh s phn ng sau: CH2 = CH2 + KMnO4 + H2O A. C2H4(OH)2 + MnO2 + KOH. B. CH3CHO + MnO2 + KOH. C. CH3COOK + MnO2 + KOH. D. C2H5OH + MnO2 + KOH. 133. So snh nhit si ca cc cht sau: Ru etylic (1), etylclorua (2), etan(3), axit axetic (4) A. (1) > (2) > (3) > (4). B. (4) > (3) > (2) > (1). C. (4) > (1) > (2) > (3). D. (1) > (2) > (3) > (4).

Trang 13 134. Cho cc dung dch: X1: dung dch HCl, X2: dung dch KNO3, X3: dung dch HCl + KNO3, X4: dung dch Fe2(SO4)3. Dung dch no c th ha tan c bt Cu? A. X1, X4, X2. B. X3, X4. C. X1, X2, X3, X4. D. X3, X2. 135. Crckinh 5,8 gam C4H10 thu c hn hp sn phm X gm H2 v 6 hirocacbon. t chy 1/2 hn hp X th lng H2O thu c l A. 13, 5 gam. B. 9 gam. C. 6,3 gam. D. 4,5 gam. 136. Theo nh ngha v axit-baz cc nhm phn t sau y c xc nh ng: A. Nhm phn t NH4+, SO42 , NO3 c tnh axit. B. Nhm phn t HCO3 , S2 , Al3+ c tnh baz. C. Nhm phn t HCO3 , Cl , K+ c tnh trung tnh. D. Nhm phn t HCO3 , H2O, HS , Al(OH)3 c tnh lng tnh. 137. Ngi ta c th dng thuc th theo th t nh th no d nhn bit 3 kh : N2, SO2, CO2? A. Ch dng dung dch Ca(OH)2. B. Dng dung dch nc vi trong sau dng dung dch KMnO4. C. Dng dung dch Br2 sau dng dung dch NaHCO3. D. C B v C. 138. Cho Fe c Z = 26. Hi Fe2+ c cu hnh nh th no? A. 1s22s22p63s23p63d44s2. B. 1s22s22p43s23p63d6. 2 2 6 2 6 5 1 C. 1s 2s 2p 3s 3p 3d 4s . D. p n khc. 139. A l mt este to bi ankanol v mt axit n chc, khng no mch h cha mt lin kt i. Cng thc phn t tng qut ca A phi l A. CxH2x-4O2 (x 4). B. CxH2x-2O2 (x 4). C. CxH2xO2(x 4). D. CxH2x-4O2 (x 3). 140. Hp cht A n chc c cng thc phn t l C4H8O2. S ng phn ca A l A. 5. B. 7. C. 4. D. 6. 141. Trn 3 dung dch H2SO4 0,1M; HCl 0,2 M; HNO3 0,3M vi th tch bng nhau c dung dch A. Cho 300 ml dung dch A tc dng vi V ml dung dch B cha NaOH 0,2 M v Ba(OH) 2 0,1M c dung dch C c pH=1. Gi tr ca V l A. 0,24 lt. B. 0,08 lt. C. 0,16 lt. D. 0,32 lt. 142. t chy hon ton 2,22 gam mt hp cht hu c X thu c 5,28 gam CO2 v 2,7 gam H2O. X phn ng c vi Na, khng phn ng vi dung dch NaOH. Tm Cng thc phn t ca X v cho bit tt c cc ng phn cng nhm chc v khc nhm chc ca X ng vi cng thc trn? A. C3H8O, c 4 ng phn. B. C4H10O v 6 ng phn. C. C2H4(OH)2, khng c ng phn. D. C4H10O c 7 ng phn. 143. Hon thnh phng trnh phn ng h hc sau: SO2 + KMnO4 + H2O Sn phm l A. K2SO4, MnSO4. B. MnSO4, KHSO4. C. MnSO4, KHSO4, H2SO4. D. MnSO4, K2SO4, H2SO4. 144. Cho 1,365 gam mt kim loi kim M tan hon ton vo nc thu c mt dung dch ln hn khi lng nc ban u l 1,33 gam. Kim loi M dng l A. Na. B. K. C. Cs. D. Rb. 145. Ha tan hon ton 2,175 gam hn hp 3 kim loi Zn, Mg, Fe vo dung dch HCl d thy thot ra 1,344 lt H2 (ktc). Khi c cn dung dch ta thu c bao nhiu gam mui khan? A. 6,555. B. 6,435. C. 4,305. D. 4,365.

Trang 14 146. trung ha 200 ml dung dch aminoaxit M 0,5M cn 100 gam dung dch NaOH 8%, c cn dung dch sau phn ng c 16, 3 gam mui khan. M c cng thc cu to l A. H2N 2 CH COOH. B. H2N CH(COOH)2. C. H2N 2 CH CH(COOH)2. D. (H2N)2CH COOH. + 2+ 2+ 147. Cho dung dch cha cc ion sau (Na , Ca , Mg , Ba2+, H+, Cl ). Mun tch c nhiu cation ra khi dung dch m khng a ion l vo dung dch, ta c th cho dung dch tc dng vi cht no trong cc dung dch sau: A. Dung dch KHCO3 va . B. Dung dch Na2SO4 va . C. Dung dch NaOH va . D. Dung dch Na2CO3 va . 148. Hp cht hu c C4H7O2Cl khi thy phn trong mi trng kim c cc sn phm trong c hai cht c kh nng trng gng. Cng thc cu to ng l A. HCOO 2 CH CHCl 3. CH B. CH3COO 2Cl. CH C. C2H5COO CHCl 3. CH D. HCOOCHCl 2 3. CH CH 149. Trong qu trnh in phn, cc ion m di chuyn v A. cc m v b in cc kh. B. cc dng v b in cc kh. C. cc dng v b in cc oxi ha. D. cc m v b in cc oxi ha. 150. Cho 2, 24 lt CO2 vo 20 lt dung dch Ca(OH)2, thu c 6 gam kt ta. Nng ca dung dch Ca(OH)2 dng l A. 0,003M. B. 0,0035M. C. 0,004M. D. 0,003M hoc 0,004M.P N 13: 1. C 6. B 2. C 7. B 3. D 8. C 4. B 9. C 5. A 10. B 11. D 12. C 13. A 14. B 15. C 16. B 17. B 18. A 19. D 20. C 21. D 22. A 23. D 24. C 25. B 26. C 27. C 28. B 29. D 30. C 31. B 32. A 33. C 34. B 35. D 36. D 37. B 38. B 39. B 40. D 41. B 42. D 43. D 44. B 45. B 46. B 47. D 48. D 49. C 50. C

S 14 151. Trong mt cc nc cha a mol Ca , b mol Mg2+, c mol Cl v d mol HCO3 . Biu thc lin h gia a, b, c, d l A. a + b = c + d. B. 3a + 3b = c + d. 1 C. 2a + 2b = c + d. D. (a + b) = c + d. 2 2+ 152. Trong mt cc nc cha a mol Ca , b mol Mg2+, c mol Cl v d mol HCO3 . Nu ch dng nc vi trong nng p mol/l lm gim cng trong cc, th ngi ta thy khi cho V lt nc vi trong vo, cng ca nc trong bnh l b nht, bit c = d. Biu thc lin h gia a, b v p l A. V = (b + a)/2p.B. V = (2a + b)/p. C. V = (3a + 2b)/2p. D. V = (2b + a)/p. 153. Phng php no sau y dng iu ch kim loi kim? A. in phn dung dch mui clorua / mng ngn xp. B. in phn nng chy mui clorua. C. in phn nng chy Hiroxit ca kim loi kim. D. C hai p n B, C u ng. 154. A, B l cc kim loi hot ng ha tr II, thuc 2 chu k lin tip trong bng tun hon. Ha tan hn hp gm 23,5 gam cacbonat ca A v 8,4 gam mui cacbonat ca B bng dung dch HCl d c cn v in phn nng chy hon ton cc mui th thu c 11,8 gam hn hp kim loi catot v V lt khi anot. Hai kim loi A v B l A. Be v Mg. B. Mg v Ca. C. Sr v Ba. D. Ba v Ra.2+

Trang 15 155. Hy sp xp cc cp oxi ha kh sau y theo th t tng dn tnh oxi ha ca cc ion kim loi: (1): Fe2+/Fe; (2): Pb2+/Pb; (3): 2H+/H2; (4): Ag+/Ag; (5): Na+/Na; (6): Fe3+/Fe2+; (7): Cu2+/Cu. A. (5) < (1) < (2) < (3) < (7) < (6) < (4). B. (4) < (6) < (7) < (3) < (2) < (1) < (5). C. (5) < (1) < (6) < (2) < (3) < (4) < (7). D. (5) < (1) < (2) < (6) < (3) < (7) < (4). 156. So snh tnh axit ca cc cht sau y: CH2Cl 2COOH (1), CH3COOH (2), CH CH3CH2 COOH (3), CH3 CHCl COOH (4) A. (3) > (2) > (1 ) > (4). B. (4) > (1 ) > (2) > (3). C. (4) > (1) > (3) > (2). D. (1 ) > (4) > (3) > (2). 157. Cho s chuyn ha sau: A + HCl B + D B + Cl2 F E + NaOH H + NaNO3 A + HNO3 E + NO + D B + NaOH G + NaCl G + I + D H Cc cht A, G v H l A. CuO, CuOH v Cu(OH)2. B. FeO, FeCl2 v Fe(OH)3. C. PbO, PbCl2 v Pb(OH)4. D. Cu, Cu(OH)2 v CuOH. 158. Khi cho 17,4 gam hp kim Y gm st, ng, nhm phn ng ht vi H2SO4 long d ta c dung dch A; 6,4 gam cht rn; 9,856 lt kh B 27,3oC v 1atm. Phn trm khi lng mi kim loi trong hp kim Y l A. Al: 30%; Fe: 50% v Cu: 20%. B. Al: 30%; Fe: 32% v Cu: 38% C. Al: 31,03%; Fe: 32,18% v Cu: 36,78%. D. Al: 25%; Fe: 50% v Cu: 25%. 159. Cho hn hp Y gm 2,8 gam Fe v 0,81 gam Al vo 200ml dung dch C cha AgNO3 v Cu(NO3)2. Khi phn ng kt thc, thu c dung dch D v 8,12 gam cht rn E gm 3 kim loi. Cho cht rn E tc dng vi dung dch HCl d th thu c 0,672 lt kh H2 (ktc). Nng mol ca AgNO3 v Cu(NO3)2 trong dung dch C l A. 0,075M v 0,0125M. B. 0,3M v 0,5M. C. 0,15M v 0,25M. D. 0,2M v 0,6M. 160. ha tan hon ton 10 gam bt hn hp Fe, Mg, Zn cn 100 ml dung dch hn hp 2 axit H2SO4 v HCl c nng tng ng l 0,8M v 1,2M. Sau khi phn ng xong, ly 1/2 lng kh sinh ra cho i qua ng s ng a gam CuO nung nng. Sau khi phn ng kt thc trong ng cn li 14,08 gam cht rn. Khi lng a l A. 14,20 gam. B. 15,20 gam. C. 15,36 gam. D. 25,20 gam. 161. Nguyn t X thuc chu k 3 nhm IV. Cu hnh electron ca X l A. 1s22s22p63s23p4. B. 1s22s22p63s23p2. 2 2 6 2 2 C. 1s 2s 2p 3s 3d . D. 1s22s22p63s23d4. 162. Cho bit sn phm chnh ca phn ng kh nc ca (CH3)2CHCH(OH)CH3? A. 2-metyl buten-1 B. 3-metyl buten-1. C. 2-metyl buten-2. D. 3-metyl buten-2. 163. Cho bit s ng phn no ca ru no, n chc t C3 n C5 khi tch nc khng to ra cc anken ng phn? A. C3H7OH: 2 ng phn; C4H9OH: 3 ng phn; C5H11OH: 3 ng phn. B. C3H7OH: 1 ng phn; C4H9OH: 4 ng phn; C5H11OH: 4 ng phn. C. C3H7OH: 3 ng phn; C4H9OH: 4 ng phn; C5H11OH: 3 ng phn. D. C3H7OH: 2 ng phn; C4H9OH: 3 ng phn; C5H11OH: 4 ng phn 164. Trong dy ng ng ru n chc no, khi mch cacbon tng, ni chung

Trang 16 A. si tng, kh nng tan trong nc tng. B. si tng, kh nng tan trong nc gim C. si gim, kh nng tan trong nc tng. D. si gim, kh nng tan trong nc gim. 165. Hy sp xp cc cht sau y theo trt t tng dn tnh baz: NH3, CH3NH2, C6H5NH2; (CH3)2NH v (C6H5)2NH A. (C6H5)2NH < NH3 < C6H5NH2 < (CH3)2NH < CH3NH. B. (C6H5)2NH < C6H5NH2 < NH3 < CH3NH2 < (CH3)2NH. C. (CH3)2NH < CH3NH2 < NH3 < C6H5NH2 < (C6H5)2NH. D. (CH3)2NH > CH3NH2 > NH3 < C6H5NH2 > (C6H5)2NH. 166. Nhit phn 1,88 gam Cu(NO3)2 ri hp th ton b lng kh sinh ra bng H2O c 2 lt dung dch A. pH ca dung dch A l A. 7. B. 2. C. 3. D. 2,2. 167. Xt cc loi hp cht hu c mch h sau: Ru n chc, no (A); anehit n chc, no (B); ru n chc, khng no 1 ni i (C); anehit n chc, khng no 1 ni i (D). ng vi cng thc tng qut CnH2nO ch c 2 cht sau: A. A, B. B. B, C. C. C, D. D. A, D. 168. t chy mt hn hp cc cht thuc dy ng ng anehit ta thu c s mol CO 2 = s mol H2O th l dy ng ng A. anehit non chc mch h. B. anehit vng no. C. anehit hai chc no. D. Anehit khng no n chc cha 1 lin kt i. 169. Hp cht hu c X khi un nh vi dung dch AgNO3 / NH3 (dng d) thu c sn phm Y, Y tc dng vi dung dch HCl kh v c A, Y tc dng vi dung dch NaOH cho kh v c B. X l A. HCHO. B. HCOOH. C. HCOONH4. D. C A, B, C u ng. 170. Cho 13,6 gam mt cht hu c X (C, H, O) tc dng va vi 300 ml dung dch AgNO 3 2M trong NH4OH thu c 43,2 gam bc. Bit t khi hi ca X i vi oxi bng 2,125. Xc nh cng thc cu to ca X. A. CH3 2 CH CHO. B. CH2=CH 2 CH CHO. C. HC C 2 CH CHO. D. HC C CHO. 171. B tc phn ng sau: FeO + H+ + SO42 SO2 + ... A. FeSO4 + H2O B. Fe2(SO4)3 + H2O. C. FeSO4 + Fe2(SO4)3 + H2O D. Fe3+ + H2O 172. Phn ng gia dung dch kali pemanganat trong mi trng axit vi ion iodua c biu din bng phng trnh no di y? A. 2MnO4 + 5I + 16H+ 2Mn2+ + 8H2O + 5I2 B. MnO4 + 10I + 2H+ Mn2+ + H2O + 5I2 + 11e C. 2MnO4 + 10I + 16H+ 2Mn2+ + 8H2O + 5I2 D. MnO4 + 2I + 8H+ Mn2+ + 4H2O + I2 173. Sp xp cc cht sau y theo trnh t tng dn nhit si: CH 3COOH (1), HCOOCH3 (2), CH3CH2COOH (3), CH3COOCH3 (4), CH3CH2CH2OH (5) A. (3) > (5) > (1 ) > (2) > (4). B. (1 ) > (3) > (4) > (5) > (2). C. (3) > (1) > (4) > (5) > (2). D. (3) > (1) > (5) > (4) > (2). 174. Sp xp cc hiroxit theo chiu tng dn tnh baz: A. NaOH, KOH, Mg(OH)2, Be(OH)2. B. Mg(OH)2, NaOH, KOH, Be(OH)2. C. Mg(OH)2, Be(OH)2, KOH, NaOH. D. Be(OH)2, Mg(OH)2, NaOH, KOH.

Trang 17 175. Cht va tc dng c vi Na, NaOH l A. CH3CH2OH. B. CH3COOH. C. HCOOCH3. D. HOCH2CH2CH=O 176. Hn hp X gm 0,01 mol HCOONa v a mol mui natri ca hai axit no n chc l ng ng lin tip. t chy hn hp X v cho sn phm chy (CO 2, hi nc) ln lt qua bnh 1 ng H2SO4 c bnh 2 ng KOH thy khi lng bnh 2 tng nhiu hn bnh mt l 3,51 gam. Phn cht rn Y cn li sau khi t l Na2CO3 cn nng 2,65 gam. Xc nh cng thc phn t ca hai mui natri. A. CH3COONa v C2H5COONa. B. C3H7COONa v C4H9COONa. C. C2H5COONa v C3H7COONa. D. Kt qu khc. 177. T bo quang in c ch to t kim loi no trong cc kim loi sau: A. Na. B. Ca. C. Cs. D. Li. 178. Thy phn este E c cng thc phn t C4H8O2 vi xc tc axit v c long, thu c hai sn phm hu c X, Y (ch cha cc nguyn t C, H, O). T X c th iu ch trc tip ra Y bng mt phn ng duy nht. Cht X l A. axit axetic. B. ru etylic. C. etyl axetat. D. axit fomic. 179. C 2 hp cht hu c (X), (Y) cha cc nguyn t C, H, O, khi lng phn t u bng 74. Bit (X) tc dng c vi Na, c (X), (Y) u tc dng c vi dung dch NaOH v dung dch AgNO3 trong NH3. Vy X, Y c th l A. C4H9OH v HCOOC2H5. B. CH3COOCH3 v HOC2H4CHO. C. OHC COOH v C2H5COOH. D. OHC COOH v HCOOC2H5. 180. Cht no khng phn ng c vi Cu(OH)2? A. CH3COOH. B. HOCH2CH2OH. C. HOCH2CH2CH2OH. D. CH3CH=O. 181. Cho s chuyn ho sau: 1). C3H4O2 + NaOH (A) + (B) 2). (A) + H2SO4 long (C) + (D) 3). (C) + AgNO3 + NH3 + H2O (E) + Ag + NH4NO3 4). (B) + AgNO3 + NH3 + H2O (F) + Ag + NH4NO3 Cc cht B v C (theo th t) c th l A. CH3CHO v HCOONa. B. CH3CHO v HCOOH. C. HCHO v HCOOH. D. HCHO v CH3CHO. 182. Cho phn ng sau: CH2=CH2 + KMnO4 + H2O Cc cht sinh ra sau phn ng l A. C2H4(OH)2, MnSO4, K2SO4, H2O. B. CH3CHO, MnSO4, K2SO4, H2O. C. CH3COOH, MnO, K2SO4, H2O. D. CH3COOH, MnSO4, K2SO4, H2O 183. So snh nhit si ca cc cht sau: ru etylic (1), etyl clorua(2), etan (3) v axit axetic (4). A. (1 ) > (2) > (3) > (4). B. (4) > (3) > (2) > (1). C. (4) > (1) > (2) > (3). D. (1) > (2) > (3) > (4). 184. Cho cc dung dch X1: dung dch HCl; X2: dung dch KNO3; X3: dung dch HCl + KNO3; X4: dung dch Fe2(SO4)3. Dung dch no c th ho tan c bt Cu? A. X1, X4, X2. B. X3, X4. C. X1, X2, X3, X4. D. X3, X2. 185. Crckinh 5,8 gam C4H10 thu c hn hp sn phm X gm H2 v 6 hirocacbon. t chy 1/2 hn hp X th lng H2O thu c l A. 13,5 gam. B. 9 gam. C. 6,3 gam. D. 4,5 gam. 186. Theo nh ngha mi v axit-baz, nhm phn t no sau y c xc nh ng? A. Nhm phn t NH4+, SO42 , NO3 c tnh axit.

Trang 18 B. Nhm phn t HCO , S Al c tnh baz. C. Nhm phn t HCO Cl K+ c tnh trung tnh. D. Nhm phn t HCO H2O, HS , Al(OH)3 c tnh lng tnh. 187. Ngi ta c th dng thuc th theo th t nh th no nhn bit 3 kh N2, SO2, CO2? A. Ch dng dung dch Ca(OH)2. B. Dng dung dch nc vi trong sau dng dung dch KMnO4. C. Dng dung dch Br2 sau dng dung dch Na2CO3. D. C B v C. 188. Cho Fe c Z=26, hi Fe2+ c cu hnh nh th no? A. 1s22s22p63s23p63d44s2. B. 1s22s22p43s23p63d6. 2 2 6 2 6 5 1 C. 1s 2s 2p 3s 3p 3d 4s . D. p n khc. 189. A l este to bi mt ankanol v mt axit khng no mch h, n chc, ch cha mt lin kt i. Cng thc phn t tng qut ca A phi l A. CxH2x4O2 (x 4). B. CxH2x2O2 (x 4). C. CxH2xO2 (x 4). D. CxH2x4O2 (x 3). 190. Hp cht A n chc c cng thc phn t l C4H8O2. S ng phn ca A l A. 5. B. 7. C. 4. D. 6. 191. Trn 3 dung dch H2SO4 0.1M; HCl 0,2M; HNO3 0,3M vi th tch bng nhau c dung dch A. Cho 300 ml dung dch A tc dng vi V ml dung dch B cha NaOH 0,2M v Ba(OH) 20,1M c dung dch C c pH =1. Gi tr ca V l A. 0,24 lt. B. 0,08 lt. C. 0,16 lt. D. 0,32 lt. 192. t chy hon ton 2,22 gam mt hp cht hu c X thu c 5,28 gam CO2 v 2,7 gam H2O. X phn ng vi Na, khng phn ng vi dung dch NaOH. Tm cng thc phn t ca A v cho bit tt c cc ng phn cng nhm chc v khc nhm chc ca A ng vi cng thc phn t trn? A. C3H8O c 4 ng phn. B. C2H5OH c 2 ng phn. C. C2H4(OH)2 khng c ng phn. D. C4H10O c 7 ng phn. 193. Hon thnh cc phng trnh phn ng ha hc sau: SO2 + KMnO4 + H2O ... Sn phm l A. K2SO4, MnSO4. B. MnSO4, KHSO4. C. MnSO4, KHSO4, H2SO4. D. MnSO4, K2SO4, H2SO4. 194. Cho 1,365 gam mt kim loi kim X tan hon ton vo nc thu c mt dung dch ln hn khi lng nc ban u l 1,33 gam. Kim loi M dng l A. Na. B. K. C. Cs. D. Rb. 195. Ho tan hon ton 2,175 gam hn hp 3 kim loi Zn, Mg, Fe vo dung dch HCl d thy thot ra 1,344 lt H2 (ktc). Khi c cn dung dch ta thu c bao nhiu gam mui khan? Chn p s ng. A. 6,555. B. 6,435. C. 4,305. D. 4,365. 196. trung ho 200 ml dung dch aminoaxit X nng 0,5M cn 100 gam dung dch NaOH 8%, c cn dung dch sau phn ng c 16,3 gam mui khan. X c cng thc cu to: A. H2N 2 CH COOH. B. H2N CH(COOH)2. C. H2N 2 CH CH(COOH)2. D. (H2N)2CH COOH. + 2+ 2+ 197. Cho dung dch cha cc ion sau (Na , Ca , Mg , Ba2+, H+, Cl ). Mun tch c nhiu cation ra khi dung dch m khng a ion l vo dung dch, ta c th cho dung dch tc dng vi cht no trong cc cht sau? A. Dung dch KHCO3 va . B. Dung dch Na2SO4 va . C. Dung ch NaOH va . D. Dung dch Na2CO3 va . 3 3, 3, 2 , , 3+

Trang 19 198. Hp cht hu c C4H7O2Cl khi thy phn trong mi trng kim c cc sn phm trong c hai cht c kh nng trng gng. Cng thc cu to ng l A. HCOO 2 CH CHCl 3. CH B. CH3COO 2Cl. CH C. C2H5COO CHCl 3. CH D. HCOOCHCl 2 3. CH CH 199. Trong qu trnh in phn, cc ion m di chuyn v A. cc m v b in cc kh. B. cc dng v b in cc kh. C. cc dng v b in cc oxi ho. D. Cc m v b in cc oxi ho. 200. Cho 2,24 lt CO2 ktc vo 20 lt dung dch Ca(OH)2, thu c 6 gam kt ta. Nng ca dung dch Ca(OH)2 dng l A. 0,003M. B. 0,0035M. C. 0,004M. D. 0,003M hoc 0,004M.P N 14: 1. C 6. B 2. A 7. B 3. D 8. C 4. D 9. C 5. A 10. C 11. B 12. C 13. D 14. D 15. B 16. B 17. B 18. A 19. D 20. C 21. D 22. C 23. D 24. D 25. B 26. B 27. C 28. B 29. D 30. C 31. B 32. A 33. C 34. B 35. B 36. D 37. B 38. B 39. B 40. D 41. B 42. D 43. D 44. B 45. B 46. B 47. D 48. D 49. B 50. C

S 15 Nguyn t X thuc chu k 3, nhm IV c cu hnh l A.1s22s22p63s23p4. B.1s22s22p63s23p2. C.1s22s22p63s23d2. D.1s22s22p63s23p3. 202. Trong bng tun hon nhm nguyn t c m in ln nht l A. nhm VII, PNC (halogen). B. nhm VI, PNC. B. nhm I, PNC (kim loa kim). D. nhm VIII, PNC (nhm kh tr). 203. Sp xp cc baz theo th t tnh baz tng dn: A. NaOH < Mg (OH)2 < KOH. B. KOH < NaOH < Mg(OH)2. C. Mg(OH)2 < NaOH < KOH. D. Mg(OH)2 < KOH < NaOH. 204. Trong cc hp cht sau, hp cht no l hp cht cng ha tr: BaCl2, Na2O, HCl, H2O: A. ch c H2O. B. HCl, H2O. C. Na2O, H2O. D. ch c BaCl2. 205. Sp xp cc cht sau: H2, C2H4, H2O theo th t nhit si tng dn. A. H2O < H2 < C2H4. B. C2H4 < H2 < H2O. C. H2 < C2H4 < H2O. D. H2 < H2O < C2H4. 206. Dung dch no trong s cc dung dch sau c pH = 7: Fe2(SO4)3, KNO3, NaHCO3, Ba(NO3)2 A. c 4 dung dch . B. Fe2(SO4)3. C. KNO3. D. KNO3, Ba(NO3)2. 207. Nh mt git qu tm vo dung dch cc mui sau: (NH4)2SO4, Na2CO3, KNO3, Al2(SO4)3 dung dch no s c mu xanh? A. (NH4)2SO4, Al2(SO4)3. B. Na2CO3. C. KNO3. D. Na2CO3, KNO3. 208. Cho hp th ht 2,24 lt NO2 (ktc) vo 0,5 lt dung dch NaOH 0,2M. Thm tip vi git qu tm th dung dch c mu g? A. Khng mu. B. Xanh. C. Tm. D. . 209. Al(OH)3 c th tc dng vi cc axit v baz no trong bn cht sau: NaOH, H 2CO3, NH4OH, H2SO4? A. NaOH, H2SO4.B. NaOH, NH4OH. C. ch c H2SO4. D. H2CO3, H2SO4. 210. Phi thm bao nhiu ml H2O vo 1ml dung dch HCl 0,01M c dung dch c pH = 3. A. 9 ml. B.1 ml. C. 2 ml. D.5 ml. 211. Trn 10 ml dung dch HCl 0,1M vi 10 ml dung dch Ba(OH)2 0,05M.Tnh pH ca dung dch thu c. 201.

Trang 20 A. pH = 6. B. pH = 7. C. pH = 8. D. pH = 9. 212. Cho cc cht sau: SO2, CO2, CH4, C2H4. Cht no lm mt mu dung dch Br2? A. SO2, CO2. B. SO2, C2H4. C. ch c SO2. D. CO2, C2H4. 213. Sp xp cc cht kh Fe2+, Fe, Cu theo th t mnh tng dn: A. Fe2+ < Fe < Cu. B. Fe < Cu < Fe2+. 2+ C. Fe < Cu < Fe. D. Cu < Fe < Fe2+. 214. Cho m gam Mg vo 100 ml dung dch A cha ZnCl2 v CuCl2, phn ng hon ton cho ra dung dch B cha 2 ion kim loi v mt cht rn D nng 1,93 gam. Cho D tc dng vi dung dch HCl d cn li mt cht rn E khng tan nng 1,28 gam. Tnh m. A. 0,24 gam. B. 0,48 gam. C. 0,12 gam. D. 0,72 gam. 215. Cho bn dung dch mui CuSO4, ZnCl2, NaCl, KNO3. Khi in phn 4 dung dch trn vi in cc tr, dung dch no s cho ra dung dch baz kim? A. CuSO4. B. ZnCl2. C. NaCl. D. KNO3. 216. iu ch Na ngi ta c th dng phng php no trong s cc phng php sau: 1. in phn dung dch NaCl; 2. in phn nng chy NaCl. 3. Dng Al kh Na2O; 4. Kh Na2O bng CO. A. Ch dng 1. B. Dng 3 v 4. C. ch dng 2. D. ch dng 4. 217. Cho 4 kim loi Mg, Fe, Cu, Ag. Kim loi c tnh kh yu hn H2 l: A. Mg v Fe. B. Cu v Ag. C. ch c Mg. D. ch c Ag. 218. Cho CO qua 1,6 gam Fe2O3 t nng (gi s ch xy ra phn ng kh Fe2O3 thnh Fe).Kh thu c cho qua nc vi d thu c 3 gam. kt ta.Tnh % khi lng Fe2O3 b kh v th tch kh CO phn ng ktc. A. 100% ; 0,224 lt. B. 100% ; 0,672 lt. C. 80% ; 0,672 lt. D. 75% ; 0,672 lt. 219. Cho cc kim loi sau: Ba, Al, Fe, Cu. Kim loi tan c trong nc l: A. Ba v Al. B. ch c Al. C. ch c Ba. D. Fe v Cu. 220. C 3 gi bt rn l Fe; hn hp Fe2O3 + FeO; hn hp Fe + Fe2O3. phn bit chng ta c th dng A. dung dch HNO3 v dung dch NaOH. C. nc clo v dung dch NaOH. B. dung dch HCl v dung dch NaOH. D.dung dch HNO3 v dung dch nc clo. 221. Cho 6 gam mt kim loi M tan ht trong 300 ml dung dch H 2SO4 1M. trung ha lng axit d cn 100 ml dung dch NaOH 1M. Xc nh kim loi M. A. Mg. B. Ca. C. Fe. D. Cu. 222. Cho 3 kim loi: Na, Ba, Fe. C th phn bit 3 kim loi trn ch bng A. H2O v dung dch HNO3. B. H2O v dung dch NaOH. C. H2O v dung dch H2SO4. D. H2O v dung dch HCl. 223. bo v tu i bin ngi ta gn ln thnh tu cc ming kim loi no sau y: Cu, Ag, Zn, Pb A. ch c Pb. B. ch c Zn. C. ch c Pb v Zn. D. ch c Cu v Ag. 224. Mt hn hp X gm Na v Ba c khi lng 32 gam. Cho X tan ht trong H2O d thu c 6,72 kt H2 (ktc). Tnh khi lng Na, Ba trong X. A. 4,6 gam Na v 27,4 gam Ba. B. 3,2 gam Na v 28,8 gam Ba. C.2,3 gam Na v 29,7 gam Ba. D.2,7 gam Na v 29,3 gam Ba. 225. Chn pht biu ng: 1. Nc cng do ion HCO3 ; 2. Nc cng vnh cu do cc mui Cl , SO42 ca Ca2+, Mg2+. 3. Nc cng tm thi do cc mui Ca(HCO3)2, Mg(HCO3)2. 4. C th lm mt ht tnh cng ca nc cng bng dung dch NaOH.

226.

Trang 21 5. C th lm mt ht tnh cng ca nc cng bng dung dch H2SO4. A. Ch c 1. B. Ch c 2, 3. C. Ch c 1, 2, 3. D. Ch c 3,4. Gi tn ru sau y: CH C 2H 5 H3C C CH CH CH3 CH3 CH3

A. 2,3-imetyl-4-etylpentanol-2. B. 2-etyl-3,4-imetylpentanol-4. C. 2,3,4-trimetylhexanol-2. D. 3,4,5-trimetylhexanol-5. 227. CH3COOH tc dng c vi cht no sau y to ra c este: CH 3 C CH3 II A. C2H5OH. B.CH3CHO. C.HCOOH. D. . O 228. Cc ru no, n chc tc dng c vi CuO nung nng to ra c anehit l A. ru bc 2. B. ru bc 3. C. ru bc 1. D. ru bc 1 v bc 2. 229. t chy ru A cho n H 2O > n CO2 . Vy A l 1. ru no; 3. ru no, n chc, mch h; 2. ru no, n chc; 4. ru no, mch h. Kt lun ng l: A. c 4 kt lun. B. ch c 1. C. ch c 3. D. ch c 4. 230. Cht va phn ng c vi Na v vi dung dch NaOH l A. CH3 2 CH OH. B. HO 2 2 CH CH CH=O. C. CH3 COOH. D. HCOOCH3. 231. So snh linh ng ca nguyn t H trong nhm OH ca cc cht sau: H2O, CH3OH, C6H5OH, HCOOH. A. H2O < CH3OH < C6H5OH < HCOOH. B. CH3OH < H2O < C6H5OH < HCOOH. C. CH3OH < C6H5OH < H2O < HCOOH. D. HCOOH < CH3OH < C6H5OH < H2O. 232. Dy cc dung dch u tc dng vi Cu(OH)2 l A. glucoz, glixerin, C2H5OH, CH3COOH. B. glucoz, glixerin, CH3CHO, CH3COOH. C. glucoz, glixerin, CH3CHO, CH3COONa. CH 3 C CH3 II D. glucoz, glixerin, , CH3COONa. O 233. Cht khng phn ng c vi Ag2O trong NH3 un nng to thnh Ag l A. glucoz. B. HCOOCH3. C. CH3COOH. D. HCOOH. 234. Cht phn ng c vi Ag2O trong NH3 to ra kt ta l A. CH3 C 3. C CH B. HC C 2 3. CH CH C. CH2=CH CH=CH2. D. CH3 C C CH=CH2. 235. phn bit 3 dung dch cha 3 cht: CH3COOH, HCOOH, CH2=CH COOH c th dng thuc th sau: A. Qu tm v dung dch Br2. B. Cu(OH)2 v dung dch Na2CO3. C. qu tm v dung dch NaOH. D. Cu(OH)2 v dung dch Br2. 236. C th dng cc ha cht sau tch cc cht ra khi hn hp gm: benzen, phenol, anilin: A. Dung dch NaOH, dung dch HCl. B. Dung dch NaOH v CO2.

Trang 22 C. Dung dch HCl v dung dch NH3. D. Dung dch NH3 v CO2. 237. Cht c kkh nng lm xanh nc qu tm l A. anilin, CH3NH2. B. CH3NH2. C. NH4Cl. D. CH3 3Cl. NH 238. Cht c kh nng lm nc qu tm l A. phenol. B. phenol, CH3COOH. C. CH3COOH. D. CH3COOH, CH3CHO. 239. Cht khng tc dng c vi dung dch NaOH l A. CH3COOC2H5.B. CH3COOH. CH 3 C CH3 II C. phenol. D. . O 240. So snh nhit si ca cc cht sau: CH3COOH, CH3CHO, C2H5OH, H2O A. CH3COOH < H2O < C2H5OH < CH3CHO. B. CH3CHO < C2H5OH < H2O < CH3COOH. C. H2O < C2H5OH < CH3CHO < CH3COOH. D. C2H5OH < CH3CHO< H2O < CH3COOH. 241. Cho s : Cl2 KOH, H 2O + Cl2 C3H6 A B glixerin as, 500 oC to Xc nh A, B tng ng. A. X: CH2=CH 2Cl, Y: CH2Cl CH CHCl 2Cl. CH B. X: CH2Cl CHCl 3, Y: CH2Cl CH CHCl 2Cl. CH C. X: CH2Cl CHCl 3, Y:CH2=CH 2Cl. CH CH D. X: CHCl2 CH=CH2, Y: CH2Cl CHCl CHCl2. 242. C th iu ch c CH3COOH trc tip bng mt phn ng t: A. C2H5OH, C2H6, CH3OH. B. CH3CHO, CH3COONa, C2H5OH, CH3COOCH3. C. CH3CHO, CH3CH2COONa, CH3OH. D. CH3COOCH3, CH3COONa, C2H6. 243. So snh tnh baz ca CH3NH2, NH3, CH3NHCH3,C6H5NH2: A. C6H5NH2 < NH3 < CH3NHCH3 < CH3NH2. B. NH3 < CH3NH2 < CH3NHCH3 < C6H5NH2. C. C6H5NH2 < NH3 < CH3NH2 < CH3NHCH3. D. CH3NH2 < C6H5NH2 < CH3NHCH3 (c) > (d). B. (b) > (c) > (d) > (a). C. (a) > (c) > (b) > (d). D. (b) > (a) > (c) > (d). 288. Cho mt -aminoaxit A mch thng c cng thc phn t H2NR(COOH)2 phn ng va ht vi 0,1 mol NaOH to ra 9,55 gam mui khan. A l A. axit 2-aminpropanioic. B. axit 2-aminbutanioic. C. axit 2-aminpentanioic. D. axit 2-aminhexanioic.

Trang 26 289. Chn cu ng trong cc cu sau: A. Tinh bt v xenluloz u c phn ng trng gng. B. Tinh bt v xenluloz, saccaroz u c cng thc chung l Cn(H2O)n. C. Tinh bt v xenluloz, saccaroz u c cng thc chung l Cn(H2O)m. D. Tinh bt v xenluloz, saccaroz u l cc polime c trong thin nhin. 290. nhn bit 3 cht bt mu trng: tinh bt, xenluloz, saccaroz ta c th tin hnh theo trnh t no sau y: A. Ho tan vo nc, dung dch H2SO4 un nng, dung dch AgNO3/NH3. B. Ho tan vo nc, dng dung dch iot. C. Dung dch H2SO4 un nng, dung dch AgNO3/NH3. D. Dng dung dch iot, dung dch AgNO3/NH3. 291. Polime no sau y c to ra t phn ng ng trng hp? A. Cao su buna-S. B. Nilon-6,6. C. Nilon-6. D. Thu tinh hu c. 292. Mt hp cht hu c A c cng thc phn t C3H9O2N. Cho A phn ng vi dung dch NaOH, un nh thu c mui B v kh C lm xanh giy qu m. cng thc cu to ca A l A. CH3COONH3CH3. B. C2H5COONH4. C. HCOONH3CH2CH3. D. c A, B, C u ng. 293. un 132,8 gam hn hp 3 ru no n chc vi dung dch H2SO4 c 140oC thu c 111,2 gam hn hp cc ete c s mol bng nhau (phn ng hon ton). S mol mi ete l A. 0,1 mol. B. 0,2 mol. C. 0,3 mol. D. kt qu khc. 294. Cho 3 dung dch cha 3 cht sau: C6H5ONa (natriphenolat); C6H5NH3Cl (phenyl amoniclorua); NaAlO2 v 2 cht lng ring bit C2H5OH; C6H6 (benzen). C th dng b cht no sau y phn bit c cc l cha chng? A. dd NaCl v dd HCl. B. dd HCl v dd NaOH. C. dd NaOH v CO2. D. dd HCl v Na2SO4. 295. Cho cc cht sau: H2N 2 CH COOH (1); CH3COOH (2); HCOOH (3); CH3COOCH3 (4); C6H5NH2 (5). Cht no khi cho vo dung dch HCl c phn ng xy ra? A. (1), (5). B. (1), (2), (3). C. (1), (4), (5). D. ch c (1). 296. X l hn hp 2 este ng phn c to thnh t ru n chc mch h khng phn nhnh vi axit n chc. T khi hi ca X so vi H2 bng 44. X l A. C3H6O2. B. C4H8O2. C. C5H10O2. D. C6H12O2. 297. M l dn xut ca benzen c CTPT l C7H9NO2. 1 mol M tc dng va vi dung dch NaOH, c cn dung dch thu c 144 gam mui khan. Xc nh CTCT ca M? A. o-CH3 6H4NO2. C B. HO 6H3(OH)NH2. C C. C6H5COONH4.D. p-CH3 6H4NO2. C 298. Mt hp cht thm c CTPT l C7H8O c s ng phn ca hp cht thm l A. 4. B. 5. C. 6. D. 7. 299. Mt hirocacbon no M khi t chy 1 mol M ch cho 5 mol CO2. Khi th Cl2 trong iu kin askt ch cho 1 sn phm th monoclo duy nht. M l A. n-pentan. B. isopentan. C. neopentan. D. xiclopentan. 300. Tt c nhng loi hp cht hu c no trong cc dy sau y c th tham gia phn ng thu phn (c xc tc)? A. este hu c, lipit, Saccaroz, fructoz, tinh bt, xenluloz, protein B. este hu c, lipit, Saccaroz, mantoz, tinh bt, xenluloz, protein. C. aminoaxit, lipit, Saccaroz, mantoz, tinh bt, xenluloz, protein. D. este hu c, lipit, glucoz, mantoz, tinh bt, xenluloz, protein.P N 16: 1. A 6. D 2. B 7. D 3. A 8. C 11. A 12. A 13. C 16. A 17. C 18. D 21. B 22. B 23. C 26. D 27. C 28. D 31. C 32. C 33. D 36. D 37. D 38. C 41. A 42. D 43. B 46. B 47. C 48. B

Trang 274. D 5. D 9. D 10. C 14. D 15. A 19. D 20. C 24. C 25. C 29. A 30. C 34. B 35. C 39. C 40. B 44. B 45. A 49. C 50. B

S 17 301. Cho cht hu c A c cng thc phn t C4H10O. un A vi H2SO4 c 170oC ngi ta thu c 3 anken. Tn gi ca cht A l A. 2- metyl propanol. B. butanol-1. C. butanol-2. D. metylpropyl ete. 302. Cc cht ca dy no sau y va c tnh kh, va c tnh oxi ho? A. O3, S, SO3. B. FeO, SO2, S. C. Na2O, F2, S. D. Ba, H2O2, Ca. 303. Trong phn t hp cht 2,2,3-trimetyl pentan, s nguyn t cacbon bc I, bc II, bc III v bc IV tng ng l A. 5,1,1,1. B. 4,2,1,1. C. 1,1,2,4. D. 1,1,1,5. 304. C 3 l ring bit ng ba dung dch khng mu, mt nhn l HCl, HNO 3, H2SO4. C th dng thuc th no di y phn bit 3 dung dch trn? A. giy qu tm, dd baz. B. dd BaCl2; Cu. C. dd AgNO3; Na2CO3. D. dd phenolphthalein. 305. iu kin thng metanol l cht lng mc d khi lng phn t ca n tng i nh do A. gia cc phn t ru c tn ti lin kt hiro lin phn t. B. trong thnh phn ca metanol c oxi. C. tan ln ca metanol trong nc. D. s phn li ca ru. 306. Dung dch axit nitric tinh khit ngoi nh sng lu ngy s chuyn dn sang mu vng l do A. HNO3 tc dng O2 khng kh to cht c mu vng. B. HNO3 phn li hon ton thnh ion H+ v NO3 . C. HNO3 b phn hu mt phn thnh NO2 lm cho axit c mu vng. D. HNO3 l mt axit mnh c tnh oxi ho. 307. Cho s cc phn ng sau: 2+ O2 / Cu 2Cl2 ,PdCl2 O2 / Mn 2 + C2 H 2 / Zn C2H4 X Y Z. Cht X, Y, Z theo th t l A. CO; CO2 v CH3COOH. B. CH2=CH OH; CH3COOH v CH2=CH COOCH3. C. CH3CHO; CH3CH2OH v CH3CH2OCH=CH2. D. CH3CHO; CH3COOH v CH3COOCH=CH2. 308. Cu hnh electron ca ion M2 s l cu hnh no trong s cc cu hnh sau y? A. 1s22s22p6. B. 1s22s22p63s23p63d6. 2 2 6 2 6 2 C. 1s 2s 2p 3s 3p 4s . D. 1s22s22p63d104s24p5. 309. t chy hn hp 2 ru ng ng ca etanol c s mol bng nhau, thu c kh CO 2 v hi nc c t l mol n H 2O : n CO2 = 3 : 2. Cng thc phn t ca 2 ru l A. C2H6O v C3H8O. B. CH4O v C2H6O. C. CH4O v C3H8O. D. C2H6O2 v C4H10O2. 310. in phn dung dch hn hp HCl, NaCl vi in cc tr, mng ngn xp. Hi trong qu trnh in phn, pH ca dung dch thay i nh th no? A. Khng thay i. B. Tng ln. C. Gim xung. D. C th tng, c th gim. 311. Mt este n chc, mch h c khi lng l 25,8 gam tc dng va vi 300 ml NaOH 1M. Sau phn ng thu c mui v anehit. Cng thc cu to ca este l A. HCOOCH(CH3)2. B. CH3COOCH=CH2. C. C2H5COOCH=CH2. D. CH3CH2COOCH3.

312. th

Trang 28 Cho a mol NaAlO2 tc dng vi dung dch cha b mol HCl, sau phn ng thu c kt ta A.

a 1 a a > . B. < 1. C. 1. D. kt qu khc. b 4 b b 313. Nitro ho benzen bng HNO3 c/H2SO4 c nhit cao nhn c sn phm no l ch yu? A. 1,2-initrobenzen. B. 1,3-inotrobenzen. C. 1,4-initrobenzen. D. 1,3,5-trinitrobenzen. 314. Mt hp kim gm cc kim loi Zn, Fe, Cu. Ho cht c th ho tan hon ton hp kim trn thnh dung dch l A. dung dch HCl. B. dung dch NaOH. C. dung dch HNO3 c ngui. D. dung dch FeCl3. 315. Cht no sau y tham gia phn ng este nhanh nht vi ru etylic A. CH3COOH. B. C6H5OH. C. (CH3CO)2O. D. (CH3)2CO. 316. Nhn xt no di y v mui NaHCO3 khng ng? A. Mui NaHCO3 l mui axit. B. Mui NaHCO3 khng b phn hu bi nhit. C. Dung dch mui NaHCO3 c pH > 7. D. Ion HCO3 trong mui c tnh cht lng tnh. 317. t chy hon ton mt lng hn hp 2 este no n chc cn 3,976 lt O2 (ktc) thu c 6,38g CO2. Cho lng este ny tc dng va vi KOH thu c 2 ru k tip v 3,92 gam mui ca 1 axit hu c. Cng thc ca 2 este l A. C2H4O2 v C3H6O2. B. C3H6O2 v C4H8O2. C. C2H4O2 v C4H8O2. D. C2H4O2 v C3H6O2. 318. Cn V1 lt H2SO4 c t khi d = 1,84 g/ml v V2 lt nc ct pha thnh 10 lt dung dch H2SO4 c d = 1,28 g/ml. V1, V2 ln lt c gi tr l A. 3,33 v 6,67. B. 2,5 v 7,5. C. 4 v 6. D. 5 v 5. 319. Hp cht hu c A cha C, H, O. Trong phn t A ch cha 1 loi nhm nh chc. Khi cho 1 mol A tc dng vi AgNO3 trong NH3 d th thu c 4 mol Ag. Bit phn t A c 37,21% oxi v khi lng. A l A. HCHO. B. HCOOH. C. C2H4(CHO)2. D. C3H6(CHO)2. 320. t 8,96 lt H2S (ktc) ri ho tan sn phm kh sinh ra vo dung dch NaOH 25% (d = 1,28 g/ml) thu c 46,88 gam mui. Th tch dung dch NaOH l A. 100 ml. B. 80ml. C. 120 ml. D. 90 ml. 321. em phn tch 0,005 mol mt este A thu c 0,66 gam CO2 v 0,27 gam H2O. Bit t khi ca A i vi khng kh l 2,55. Khi cho A tc dng vi NaOH cho mt mui m khi lng bng 34/37 khi lng A. Cng thc n gin, cng thc phn t, cng thc cu to ca A ln lt l A. (C2H4O2)n, C2H4O2, HCOOCH3. B. (C3H6O2)n, C3H6O2, HCOOC2H5. C. (CH2O)n, C2H4O2, HCOOCH3. D. (C2H4O2)n, C4H8O4, C2H5OOCCOOCH3. 322. Hn hp X gm 0,03 mol Al v 0,05 mol Fe tc dng vi 100 ml dung dch Y cha AgNO3 v Cu(NO3)2. Sau phn ng thu c dung dch G v 8,12 gam cht rn E gm 3 kim loi. Cho cht rn E tc dng vi dung dch HCl d thu c 0,672 lt H2 ( ktc). Cc phn ng xy ra hon ton. Nng mol Cu(NO3)2 v AgNO3 ln lt l A. 0,3M v 0,5M. B. 0,5M v 0,3M. C. 0,2 M v 0,5 M. D. kt qu khc. 323. Cho 0,2 mol hn hp gm 2 anehit no n chc k tip nhau tc dng vi dung dch Ag2O/NH3 thu c 51,84 gam Ag. Hai anehit l

Trang 29 A. CH3CHO v C2H5CHO. B. HCHO v C2H5CHO. C. HCHO v C3H7CHO. D. HCHO v CH3CHO. 324. 6,94 gam hn hp gm 1 oxit st v nhm ho tan hon ton trong 100 ml dung dch H 2SO4 1,8M to thnh 0,03 mol H2 v dung dch A. Bit lng H2SO4 ly d 20% so vi lng phn ng. Cng thc ca oxit st l A. FeO. B. Fe3O4. C. Fe2O3. D. khng xc nh. 325. t chy 7,2 gam cht hu c X thu c 2,65 gam mui Na2CO3 v hn hp hi. Dn hi thu c ln lt qua bnh I ng H2SO4 c v bnh II ng nc vi trong d. Thy khi lng bnh I tng 2,25 gam v bnh II c 32,5 gam. cht kt ta A. Phn t X ch c 2 nguyn t oxi. X c cng thc phn t l A. C3H5O2Na. B. C7H5O2Na. C. C6H5O2Na. D. C4H9O2Na. 326. Ca(OH)2 l ho cht A. c th loi cng ton phn ca nc. B. c th loi cng tm thi ca nc. C. c th loi cng vnh cu ca nc. D. khng th loi b c bt k loi nc cng no. 327. Ba dng ng phn (ortho, meta, para) c A. phenol. B. benzen. C. crezol. D. etanol. 328. Nh t t dung dch NaOH vo dung dch X thy dung dch b vn c, nh tip dung dch NaOH vo thy dung dch trong tr li. Sau nh t t dung dch HCl thy dung dch tr nn trong sut. Dung dch X l A. Al2(SO4)3. B. Pb(NO3)2. C. Fe2(SO4)3. D. A hoc B. 329. Cng thc chung ca ru no n chc, axit no n chc, mch h ln lt l A. CnH2nOH, CmH2mCOOH. B. CnH2n + 2O, CnH2nO2. C. Rn(OH)m, Rn(COOH)m. D. (CH3)nOH, (CH3)nCOOH. 330. Cho phn ng sau: 2NO(k) + O2(k) 2NO2 (k) + Q. Phn ng s dch chuyn theo chiu thun khi A. gim p sut. B. tng nhit . C. gim nhit v tng p sut. D. tng nhit v gim p sut. 331. Axit fomic v axit axetic khc nhau A. phn ng baz. B. phn ng vi Ag2O/NH3. C. thnh phn nh tnh. D. kh nng tng tc vi cht v c. 332. Dy mui nitrat no trong 4 dy mui di y khi b un nng phn hu to ra cc sn phm gm oxit kim loi + NO2 + O2 A. Al(NO3)3, Zn(NO3)2, Ba(NO3)2. B. Mg(NO3)2, Pb(NO3)2, Fe(NO3)2. C. KNO3, NaNO3, LiNO3. D. Hg(NO3)2, Mn(NO3)2, AgNO3. 333. Nhm cacboxyl v nhm amin trong prptein lin kt vi nhau bng A. lin kt ion. B. lin kt peptit. C. lin kt hiro. D. lin kt amin. 334. iu khng nh no di y ng? A. Dung dch mui trung ho lun c pH = 7. B. Dung dch mui axit lun c pH < 7. C. Nc ct c pH = 7. D. Dung dch baz lun lm cho phenolphthalein chuyn sang mu hng. 335. t chy hon ton hn hp X gm mt hirocacbon th kh v O2 d, thu c hn hp Y c thnh phn th tch H2O v CO2 ln lt l 15% v 22,5%. Hirocacbon l A. C2H6. B. C4H8. C. C3H4. D. C4H10.

Trang 30 336. Khi cho ozon tc dng ln giy c tm dung dch tinh bt v KI thy xut hin mu xanh. Hin tng ny xy ra l do A. s oxi ho ozon. B. s oxi ho kali. C. s oxi ho iotua. D. s oxi ho tinh bt. 337. Hy sp xp cc cht di y theo tnh axit tng dn: HOOCCOOH (1) ; HOOC 2 CH COOH (2) ; HOOC 2)4COOH (3) (CH A. 1 < 2 < 3. B. 1 < 3 < 2. C. 3 < 2 < 1. D. 2 < 1 < 3. 338. Cho phng trnh phn ng: Al + HNO3 Al(NO3)3 + N2O + N2 + ... Nu t l gia N2O v N2 l 2 : 3 th sau khi cn bng ta c t l mol Al : N2O : N2 l A. 23 : 4 : 6. B. 46 : 6 : 9. C. 46 : 2 : 3. D. 20 : 2 : 3. 339. Phn ng no sau y dung iu ch anehit axetic trong cng nghip : H 2O / H + A. CH3 N CH3CHO C K2Cr2O7 / H 2SO4 B. CH3 2 CH OH CH3CHO KMnO 4 / H 2SO 4 C. CH3 2 CH OH CH3CHO PdCl2 , CuCl2 D. CH2=CH2 + O2 CH3CHO 340. Cho 3 phng trnh ion rt gn: 1. Cu2+ + Fe Cu + Fe2+ 2. Cu + 2Fe3+ Cu2+ + 2Fe2+ 3. Fe2+ + Mg Fe + Mg2+ Nhn xt no di y l ng? A. Tnh kh ca Mg > Fe > Fe2+ > Cu. B. Tnh kh ca Mg > Fe2+ > Cu > Fe. C. Tnh oxi ho ca Cu2+ > Fe3+ > Fe2+ > Mg2+. D. Tnh oxi ho ca Fe3+ > Cu2+ > Fe2+ > Mg2+. 341. C 3 cht lng C2H5OH, C6H6, C6H5NH2 v 3 dung dch NH4HCO3, KAlO2, C6H5OK. nhn bit mi dung dch trn ch dng A. dd KOH. B. dd HCl. C. dd Ba(OH)2. D. dd BaCl2. 342. Cho s chuyn ho sau:to R X1 n +H2 R X2 n (mu ) +FeCl3 X3 + dd M Fe(NO3)2

Mui X

hn h p mu n u

Cc cht X1, X2, X3 l A. FeO, Fe, FeCl2. B. RbO, Rb, RbCl2. C. CuO, Cu, FeCl2. D. K2O, K, KCl. 343. Cho 4,65 gam ru no a chc Y tc dng vi Na d sinh ra 1,68 lt H2 (ktc). MY 70 vC. Cng thc phn t ca Y l A. C3H5(OH)3. B. C2H4(OH)2. C. C4H8(OH)2. D. C3H6(OH)2. 344. so snh hot ng ho hc mnh, yu ca phi kim thng c xem xt qua kh nng phn ng A. vi hiro hoc vi kim loi. B. vi oxi. C. vi dung dch mui. D. vi kim. 345. Cho 3,15 gam mt hn hp axit axetic, axit crylic v axit propionic lm mt mu hon ton dung dch cha 3,2 gam brom. trung ho hon ton 3,15 gam cng hn hp trn cn 45 ml dung dch KOH 1M. Khi lng (gam) tng axit ln lt l A. 1,44 ; 0,6 ; 1,11. B. 0,6 ; 1,44 ; 1,11. C. 1,2 ; 1,44 ; 1,11. D. p n khc.

Trang 31 346. Cho m gam kim loi Na vo 200 gam. dung dch Al2(SO4)3 1,71%. Sau khi phn ng xong thu c 0,78 gam kt ta. m c gi tr l A. 0,69 gam. B. 1,61 gam. C. c A v B u ng. D. p n khc 347. Cht khng phn ng vi AgNO3/NH3 un nng to thnh Ag l A. HCHO. B. HCOOH. C. mantoz. D. saccaroz. 348. Cho a gam hn hp E (Al, Mg, Fe ) tc dng vi dung dch HNO3 d thu c hn hp kh gm 0,02 mol NO, 0,01 mol N2O, 0,01 mol NO2 v dung dch X. C cn dung dch X thu c 11,12 gam mui khan. a c gi tr l A. 1,82. B. 11,2. C. 9,3. D. kt qu khc. 349. Hai cht hu c (cha C, H, O) c s mol bng nhau v bng a mol. Chng tc dng va vi nhau to ra sn phm A khng tan trong nc v c khi lng nh hn tng khi lng 2 cht ban u l 18a gam. A thuc loi hp cht no? A. ancol. B. axit. C. este. D. mui. 350. Trn 0,54 gam Al vi Fe2O3 v CuO ri tin hnh phn ng nhit nhm c hn hp A. Ho tan hon ton A trong HNO3 c hn hp NO2 v NO c M = 42 vC. Th tch NO2 v NO ktc l A. 0,672 lt v 0,224 lt. B. 0,896 lt v 0,224 lt . C. 0,56 lt v 0,672 lt. D. kt qu khc.P N 17: 1. C 6. C 2. B 7. C 3. A 8. A 4. B 9. C 5. A 10. B 11. B 12. B 13. D 14. D 15. C 16. B 17. B 18. A 19. A 20. B 21. B 22. A 23. D 24. C 25. B 26. B 27. C 28. A 29. B 30. C 31. B 32. B 33. B 34. C 35. C 36. C 37. C 38. B 39. D 40. D 41. B 42. C 43. B 44. A 45. B 46. C 47. D 48. A 49. C 50. A

S 18 351. i vi nng lng ca cc phn lp theo nguyn l vng bn, trng hp no sau y khng ng? A. 2p > 2s. B. 2p < 3s. C. 3s < 4s. D. 4s > 3d. 352. Cation R+ c cu hnh electron phn lp ngoi cng l 2p6. Cu hnh electron ca nguyn t R l cu hnh electron no sau y? A. 1s22s22p5. B. 1s22s22p63s1. C. 1s22s22p63s1. D. Kt qu khc. 353. Ba nguyn t X, Y, Z cng nhm A v ba chu k lin tip trong bng tun hon. Tng s ht proton trong 3 nguyn t bng 70. Ba nguyn t l nguyn t no sau y? A. Be, Mg, Ca. B. Sr, Cd, Ba. C. Mg, Ca, Sr. D. Tt c u sai. 354. Kt lun no sau y sai? A. Lin kt trong phn t NH3, H2O, H2S l lin kt cng ho tr c cc. B. Lin kt trong phn t BaF2 v CsCl l lin kt ion. C. Lin kt trong phn t CaS v AlCl 3 l lin kt ion v c hnh thnh gia kim loi v phi kim. D. Lin kt trong phn t Cl2, H2 O2, N2 l lin kt cng ho tr khng cc. 355. Z l mt nguyn t m nguyn t c cha 20 proton, cn Y l mt nguyn t m nguyn t c cha 9 proton. Cng thc ca hp cht hnh thnh gia cc nguyn t ny l A. Z2Y vi lin kt cng ho tr. B. ZY2 vi lin kt ion. C. ZY vi lin kt cho - nhn. D. Z2Y3 vi lin kt cng ho tr. 356. Trong 1 lt dung dch CH3COOH 0,01M c 6,261.1021 phn t cha phn li v ion. Bit gi tr ca s Arogaro l 6,023.1023. in li ca dung dch axit trn l A. 3,98%. B. 3,89%. C. 4,98%. D. 3,95%. + 357. Nng ca ion H trong dung dch CH3COOH 0,1M l 0,0013 mol/l. in li ca axit CH3COOH l

Trang 32 A. 1,35%. B. 1,32%. C. 1,3%. D. 1,6%. 358. i vi dung dch axit yu HNO2 0,1M, nhng nh gi no sau y l ng? A. pH = 1. B. pH > 1. + C. [H ] = [NO2 ]. D. [H+] < [NO2 ]. 359. t chy hirocacbon X thu c CO2 v H2O c t l s mol tng ng l 1 : 2. Cng thc phn t ca X l A. C2H6. B. C3H6. C. C2H4. D. CH4. 360. Phn ng gia HNO3 vi FeO to kh NO. Tng cc h s ca phn ng oxi ho - kh ny l A. 13. B. 9. C. 22. D. 20. 361. Khi cho mt ancol tc dng vi kim loi hot ng ho hc mnh (va hoc d) nu VH2 sinh ra bng 1/2 Vhi ancol o cng iu kin th l ancol no sau y? A. a chc. B. n chc. C. etilen glycol. D. tt c u sai. 362. Mt cht hu c mch h M cha C, H, O v ch cha mt loi nhm chc. Khi t chy mt lng M thu c s mol H2O gp i s mol CO2 cn khi cho M tc dng vi Na d cho s mol H2 bng 1/2 s mol M phn ng. M l hp cht no sau y? A. C2H5OH. B. CH3COOH. C. CH3OH. D. HCOOH. 363. Mt hp cht thm c cng thc phn t l C7H8O. S ng phn ca hp cht thm ny l A. 4. B. 6. C. 5. D. 7. 364. Xt cc loi hp cht hu c mch h sau: Ancol n chc no (1), anehit n chc no (2), ancol n chc khng no 1 ni i (3), anehit n chc khng no 1 ni i (4). ng vi cng thc tng qut CnH2nO ch c 2 cht sau: A. 1, 2. B. 2, 3. C. 3, 4. D. 1, 4. 365. phn bit cc cht ring bit fomalin, axeton, xiclohexen, ta c th tin hnh theo trnh t no sau y? A. Dng nc brom, dng dung dch thuc tm. B. Dng thuc th AgNO3/NH3, dng nc brom. C. Dng dung dch thuc tm, dng AgNO3/NH3. D. A, B, C u ng. 366. Hp cht hu c X khi un nh vi dung dch AgNO8/NH3 (dng d) thu c sn phm Y. Y tc dng c vi dung dch HCl hoc dung dch NaOH u cho kh v c. X c cng thc phn t no sau y? A. HCHO. B. HCOOH. C. HCOONH4. D. A, B, C u ng. 367. Cho cng thc nguyn cht ca cht X l (C3H4O3)n. Bit X l axit no, a chc. X l hp cht no sau y? A. C2H3(COOH)3.B. C4H7(COOH)3. C. C3H5(COOH)3.D. A, B, C u sai. 368. Hy sp xp cc cht sau theo trt t tng dn nhit si: CH3COOH, CH3COOH3, HCOOH3, C2H5COOH, C3H7OH. Trng hp no sau y ng? A. HCOOCH3 < CH3COOCH3 < C3H7OH < CH3COOH < C2H5 COOH. B. CH3COOCH3 < HCOOCH3 < C3H7OH < CH3COOH < C2H5COOH. C. HCOOCH3 < CH3COOCH3 < C3H5OH < C2H5COOH < CH3COOH. D. Tt c u sai. 369. Nhng mt thanh nhm nng 25 gam vo 200 ml dung dch CuSO4 0,5M. Sau mt thi gian, cn li thanh nhm thy cn nng 25,69 gam. Nng mol ca CuSO4 v Al2(SO4)3 trong dung dch sau phn ng ln lt l A. 0,425M v 0,2M. B. 0,425M v 0,3M. C. 0,4M v 0,2M.D. 0,425M v 0,025M. 370. Cho 3,06 gam oxit tan trong HNO3 d thu c 5,22 gam mui. Cng thc phn t oxit kim loi l A. MgO. B. BaO. C. CaO. D. Fe2O3. 371. Mnh no sau y l khng ng?

Trang 33 A. Trong nguyn t electron chuyn ng khng theo mt qu o xc nh m chuyn ng hn lon. B. Lp ngoi cng l bn vng khi cha ti a s electron. C. Lp electron gm tp hp cc electron c mc nng lng bng nhau. D. Electron cng gn ht nhn, nng lng cng thp 372. Nguyn t Cu c nguyn t khi trung bnh l 63,54 c hai ng v Y v Z, bit tng s khi l 128. S nguyn t ng v Y = 0,37 s nguyn t ng v Z. Xc nh s khi ca Y v Z. A. 63 v 65. B. 64 v 66. C. 63 v 66. D. 65 v 67. 373. Trn 40 ml dung dch H2SO4 0,25M vi 60 ml dung dch NaOH 0,5M. Gi tr pH ca dung dch thu c sau khi trn l A. 14. B. 12. C. 13. D.11. 374. t chy hon ton 6,2 gam photpho trong oxi d. Cho sn phm to thnh tc dng vi 50 gam dung dch NaOH 32%. Mui to thnh trong dung dch phn ng l mui no sau y? A. Na2HPO4. B. Na3PO4 v NaH2PO4. C. Na2PO4. D. Na2HPO4 v Na2HPO4. 375. Mt hirocacbon X mch h, th kh. Khi lng V lt kh ny bng 2 ln khi lng V lt N 2 cng iu kin nhit v p sut. Cng thc phn t ca hirocacbon X l A. C4H10. B. C4H8. C. C2H4. D. C5H12. 376. t chy hon ton 2 ancol X, Y ng ng k tip nhau, ngi ta thy t s mol CO 2 v H2O tng dn. X, Y thuc loi ancol no sau y? A. ancol no. B. ancol khng no. C. ancol thm. D. phenol. 377. Cho ancol thm c cng thc C8H10O. Ancol thm no sau y tho mn iu kin: H 2O X X polime. A. C6H5CH2CH2OH. B. H3C 6H4 2OH. C CH C. C 6H4 CH CH3 v C6H5CH2CH2OH. OH D. C5H4 CH CH3. OH 378. Axit fomic c th ln lt phn ng vi tt c cc cht trong nhm cht no sau y? A. Dung dch NH3, dung dch NaHCO3, Cu, CH3OH. B. Dung dch NH3, dung dch NaHCO3, dung dch AgNO3/NH3, Mg. C. Na, dung dch Na2CO3, C2H5OH, dung dch Na2SO4. D. Dung dch NH3, dung dch Na2CO3, Hg, CH3OH. 379. Cho ancol c cng thc C5H11OH. Khi tch nc, ancol ny khng to ra cc anken ng phn th s ng phn ca ancol l bao nhiu trong cc s cho di y: A. 3. B. 4. C. 5. D. Tt c u sai. 380. Mt anehit no X mch h, khng phn nhnh c cng thc thc nghim l (C2H3O)n. X c cng thc phn t l A. C2H4(CHO)2. B. C2H5CHO. C. C4H8(CHO)2. D. C4H8(CHO)4 381. phn bit cc cht ring bit benzanehit, benzen, ancol benzylic, ta c th tin hnh theo trnh t no sau y? A. Dng thuc th AgNO3/NH3 dng dung dch brom. B. Dng Na kim loi, dng dung dch NaOH. C. Dng thuc th AgNO3/NH3 dng Na. D. Dung dch brom, dng Na kim loi. 382. C hai cht hu c X, Y cha cc nguyn t C, H, O phn t khi u bng 74 vC. Bit X tc dng vi Na; c X v Y u tc dng c vi dung dch NaOH v dung dch AgNO3 trong NH3 d. X v Y c cng thc cu to no sau y? A. C4H9OH v HCOOC2H5. B. OHC COOH v HCOOC2H5.

Trang 34 C. OHC COOH v C2H5COOH. D. C2H5COOH v HCOOC2H5. 383. Khi thu ngn mt este c cng thc C4H8O2 ta c axit X v ancol Y. Oxi ho Y vi K2Cr2O7 trong H2SO4 ta c li X. Este c cng thc cu to no sau y? A. CH3COOC2H5.B. HCOOC3H7. C. C2H5COOCH3.D. Khng xc nh c. 384. Cho hn hp Cu v Fe d vo dung dch HNO3 long ngui c dung dch X. Cho NaOH vo dung dch X c kt ta Y. Kt ta Y cha: A. Fe(OH)3 v Cu(OH)2. B. Fe(OH)2 v Cu(OH)2. C. Fe(OH)2. D. Cu(OH)2. 385. Cho 10,08 gam Fe ra ngoi khng kh, sau mt thi gian thu c hn hp g st gm 4 cht (Fe, FeO, Fe2O3, Fe3O4) c khi lng l 12 gam. Cho g st tc dng vi dung dch HNO3 long dc dung dch X v kh NO. Th tch kh NO thu c ktc l A. 2,24 lt. B. 1,68 lt. C. 2,8 lt. D. 4,48 lt. 386. Cho hn hp Al v Fe tc dng vi dung dch cha hn hp AgNO3 v Cu(NO3)2 thu c dung dch B v cht rn D gm ba kim loi. Cho D tc dng vi dung dch HCl d c kh bay ln. Thnh phn cht rn D l A. Al, Fe, Cu. B. Fe, Ag, Cu. C. Al, Cu, Ag. D. Al, Fe, Ag. 387. Nguyn t X thuc chu k 3 nhm IV. Cu hnh electron ca X l A. 1s22s22p63s23p4. B. 1s22s22p63s23p2. 2 2 6 2 2 C. 1s 2s 2p 3s 3d . D. 1s22s22p63s23d4. 388. Trong bng tun hon nhm nguyn t c m in ln nht l A. nhm IA. B. nhm VIIIA. C. Phn nhm chnh nhm VI. D. Nhm VIIA. 389. Sp xp cc hiroxit theo chiu gim dn tnh baz: A. NaOH, KOH, Mg(OH)2, Be(OH)2. B. Mg(OH)2, NaOH, KOH, Be(OH)2. C. Mg(OH)2, Be(OH)2, KOH, NaOH. D. Be(OH)2, Mg(OH)2, NaOH, KOH. 390. Trong cc hp cht sau, hp cht no l hp cht cng ho tr: BaCl2, HCl, Na2O, H2O A. Ch c H2O. B. Na2O v H2O. C. HCl v H2O. D. Ch c BaCl2. 391. Cho cc dung dch sau: Ba(NO3)2, Na2CO3, Fe2(SO4)3, KCl. Dung dch no c pH = 7? A. C 4 dung dch. B. Ba(NO3)2, Fe2(SO4)3, KCl. C. KCl, Ba(NO3)2. D. Ch c dung dch KCl. 392. Cho 1 git qu tm vo dung dch cc mui sau: (NH4)2SO4, Na2CO3, KNO3, Al(NO3)3 dung dch no lm qu tm chuyn sang mu xanh? A. (NH4)2SO4, Al(NO3)3. B. (NH4)2SO4, Na2CO3. C. Ch dung dch KNO3. D. Ch dung dch Na2CO3. 393. Hp th hon ton 2,24 lt kh NO2 vo 0,5 lt dung dch NaOH 0,2M ri thm vi git qu tm th dung dch c mu g? A. Tm. B. Khng mu. C. Xanh. D. . 394. Al(OH)3 c th tc dng c vi tt c cc cht trong nhm no trong cc nhm sau? A. NaOH, NaHCO3, H2SO4. B. NaOH, Na2CO3, Na2SO4. C. NaOH, H2SO4, HCl. D. H2SO4, HCl, NaHCO3. 395. Phi thm bao nhiu ml H2O vo 1 ml dung dch HCl 0,01 M dung dch thu c c pH = 3? A. 1 ml. B. 9 ml. C. 99 ml. D. 9,9 ml. 396. Trn 10 ml dung dch HCl 0,1M vi 10 ml dung dch Ba(OH)2 0,05M th thu c dung dch A. Dung dch A c pH bng A. 13. B. 1,7. C. 7. D. 4.

Trang 35 397. Cho cc cht sau: SO2, CO2, CH4, C2H4 cht no c kh nng lm mt mu dung dch nc brom: A. SO2, CO2. B. SO2, C2H4. C. SO2, CH4. D. CH4, C2H4. 398. Sp xp cc cht v ion: Fe2+, Cu, Ag, Ni theo chiu tng dn tnh kh: A. Fe2+, Cu, Ag, Ni. B. Ag, Ni, Cu, Fe2+. 2+ C. Ag, Cu, Fe , Ni. D. Ag, Cu, Ni, Fe2+. 399. Cho m gam Mg vo 100 ml dung dch A cha ZnCl2 v CuCl2 phn ng hon ton cho ra dung dch B cha 2 ion kim loi v mt cht rn nng 1,93 gam. Cho D tc dng vi dung dch HCl d cn li mt cht rn E khng tan nng 1,28 gam. Tnh m. A. 0,24. B. 0,12. C. 0,48. D. 0,72. 400. Cho CO qua 1,6 gam Fe2O3 t nng (gi s ch xy ra phn ng kh Fe2O3 thnh Fe). Kh thu c cho qua dung dch nc vi trong d thu c 3 gam kt ta. Tnh % khi lng Fe2O3 b kh v th tch kh CO phn ng ktc. A. 100% v 2,24 lt. B. 75% v 0,672 lt. C. 80% v 6,72 lt. D. 100% v 0,672 lt.P N 18: 1. D 6. D 2. B 7. C 3. C 8. B 4. C 9. D 5. B 10. C 11. B 12. C 13. C 14. B 15. B 16. D 17. C 18. A 19. D 20. B 21. C 22. A 23. C 24. A 25. B 26. A 27. C 28. B 29. B 30. A 31. C 32. B 33. A 34. C 35. A 36. B 37. B 38. D 39. A 40. C 41. C 42. D 43. C 44. C 45. B 46. C 47. B 48. C 49. D 50. D

S 19401. Cu hnh electron no sau y ng vi nguyn t ca Fe? A. 1s22s22p63s23p64s23d6. B. 1s22s22p63s23p63d8. 2 2 6 2 6 2 6 C. 1s 2s 2p 3s 3p 4s 4p . D. 1s22s22p63s23p63d64s2. 402. Trong nhng phn ng sau y ca Fe (II) phn ng no chng t Fe (II) c tnh oxi ha: to 1. 2FeCl2 + Cl2 2FeCl3 to 2. FeO + CO Fe + CO2 to 3. 2FeO + 4H2SO4 Fe2(SO4)3 + SO2 + 4H2O A. 1. B. 2. C. 3. D. 1 v 3. 403. Kim loi X tc dng vi dung dch HCl, dung dch NaOH, khng tc dng vi HNO3 c ngui l kim loi no trong s cc kim loi sau? A. Ag. B. Fe. C. Al. D. Fe v Al. 404. Nhng phn ng no sau y vit sai? 1. FeS + 2NaOH Fe(OH)2 + Na2S 2. FeCO3 + CO2+ H2O Fe(HCO3)2 3. CuCl2 + H2S CuS + 2 HCl 4. FeCl2 + H2S FeS + 2HCl A. 1, 2. B. 2, 3. C. 3, 4. D. 4, 1. 405. Dy cc cht u phn ng vi dung dch HCl l A. NaOH, Al, CuSO4, CuO. B. Cu(OH)2, Cu, CuO, Fe. C. CaO, Al2O3, Na2SO4, H2SO4. D. NaOH, Al, CaCO3, Cu(OH)2, Fe, CaO, Al2O3. 406. Dy cc cht u phn ng vi dung dch NaOH l A. H2SO4, CaCO3, CuSO4, CO2. B. SO2, FeCl3, NaHCO3, CuO. C. H2SO4, SO2, CuSO4, CO2, FeCl3, Al. D. CuSO4, CuO, FeCl3, SO2. 407. Dy cc cht u phn ng vi nc l A. SO2, NaOH, Na, K2O. B. SO3, SO2, K2O, Na, K.

Trang 36 C. Fe3O4, CuO, SiO2, KOH. D. SO2, NaOH, K2O, Ca(OH)2. 408. Dy cc cht u phn ng vi dung dch CuCl2 l A. NaOH, Fe, Mg, Hg. B. Ca(OH)2, Mg, Ag, AgNO3. C. NaOH, Fe, Mg, AgNO3, Ag, Ca(OH)2. D. NaOH, Fe, Mg, AgNO3, Ca(OH)2. 409. Cho st nung vi lu hunh mt thi gian thu c cht rn A. Cho A tc dng vi dung dch HCl d thu c kh B, dung dch C v cht rn D mu vng. Kh B c t khi so vi H2 l 9. Thnh phn ca cht rn A l A. Fe, S, FeS. B. FeS, Fe. C. FeS, S. D. FeS. 410. C dung dch AlCl3 ln tp cht l CuCl2. C th dng cht no sau y lm sch mui nhm? A. AgNO3. B. HCl. C. Al. D. Mg. 411. Fe2O3 c ln Al2O3 th tch c st oxit tinh khit bng cc dung dch no sau y? A. HCl. B. NaCl. C. Ca(OH)2. D. HNO3. 412. Mt hn hp gm MgO, Al2O3, SiO2. Thu ly SiO2 tinh khit bng cch no sau y? A. Ngm hn hp vo dung dch NaOH d. B. Ngm hn hp vo dung dch HCl d. C. Ngm hn hp vo dung dch CuSO4 d. C. Ngm hn hp vo nc nng. 413. Ngi ta c th lm mm nc cng tm thi bng phng php no sau y? 1. un nng trc khi dng. 2. Dng dd Na3PO4. 3. Dng dung dch Ca(OH)2 vi lng va . 4. Dng dd HCl. A. 1,2,4. B. 2,3,4. C. 3,4,1. D. 1, 2, 3. 414. Hin tong g xy ra khi t t dung dch H2SO4 long vo dung dch NaAlO2? A. Lc u c kt ta keo trng, sau kt ta tan dn B. Khng c hin tng g xy ra C. Ch c hin tng xut hin kt ta D. C hin tng to kt ta v that ra bt kh khng mu 415. Thc hin phn ng nhit nhm: hn hp gm (Al + Fe3O4) n hon ton, sau phn ng thu c cht rn A. A tan hon ton trong dung dch HCl d gii phng H2, nhng ch tan mt phn trong dung dch NaOH d gii phng H2. Vy thnh phn ca cht rn A l A. Al, Fe, Fe3O4. B. Fe, Al2O3, Fe3O4. C. Al, Al2O3, Fe. D. Fe, Al2O3. 416. Chn nh ngha ng: A. Nc cng l nc c cha nhiu ion Ca2+, Mg2+. B. Nc cng tm thi l nc c cha ion hirocacbonat HCO3 . C. Nc cng vnh cu l nc c cha ion clorua Cl hoc ion sunpht SO42 hoc c hai. D. Nc cng ton phn l nc c cha ng thi cc ion clorua Cl hoc ion sunpht SO42 hoc c hai. 417. Trong cc phn ng sau, phn ng no khng ng? A. Al + NaOH + H2O NaAlO2 + H2 B. SiO2 + 2NaOHnngchy Na2SiO3 + H2O C. NaAlO2 + CO2 + H2O Al(OH)3 + NaHCO3 D. Al2O3 + 3CO 2Al + 3CO2 418. C hai bnh cha cc dung dch Ca(OH)2 v CaCl2 vi khi lng bng nhau, t ln hai a cn, cn thng bng. ngoi khng kh mt thi gian th cn b lch v pha no? A. Cn lch v pha dd CaCl2. B. Cn lch v pha dd Ca(OH)2. C. Cn khng lch v pha dd no. D. Khng xc nh c chnh xc.

Trang 37 419. bo v v tu bin ngi ta thng gn cc tm km vo pha ngoi ca v tu phn chm trong nc bin, phng php chng n mn thuc loi phng php no trong s cc phng php sau? A. Cch li kim loi vi mi trng. B. Dng phng php in ha. C. Dng cht km hm. D. Dng hp kim chng g. 420. Mt dy phi qun lm bng st b t thnh hai on, ngi ta ni hai on bng mt dy ng, hi sau mt thi gian c hin tng g on ni hai si dy? A. on ni, dy st b n mn. B. on ni, dy ng b n mn. C. Khng c hin tng g xy ra. D. C hai dy cng b n mn. 421. Thng dng phng php no trong s cc phng php sau iu ch kim loi kim v kim loi kim th? A. Phng php thy luyn. B. Phng php nhit luyn. C. Phng php in phn nng chy. D. Phng php in phn dung dch. 422. Cho 8,1 gam bt Al trn vi 16 gam Fe2O3 thu c hn hp A. Nung nng hn hp A n hon ton trong iu kin khng c oxi thu c hn hp B. Cho B vo dung dch HCl d, th tch H2 thot ra (ktc) l A. 6,72 lt. B. 7,84 lt. C. 4,48 lt. D. 5,6 lt. 423. Cho V lt (ktc) CO2 tc dng vi 200 ml dung dch Ca(OH)2 1M thu c 10 gam kt ta. Vy th tch V ca CO2 l A. 2,24 lt. B. 6,72 lt. C. 8,96 lt. D. 2,24 hoc 6,72 lt. 424. Cho m gam hn hp (Na, Al) vo nc d thy thot ra 8,96 lt kh (ktc) v cn li 2,7 gam kim loi khng tan. Khi lng m ca hn hp ban u l A. 12,7 gam. B. 9,9 gam. C. 21,1 gam. D. tt c u sai . 425. Cho 2,49 gam hn hp 3 kim loi: Mg, Zn, Fe tan hon ton trong dung dch H 2SO4 long thy c 1,344 lt H2 thot ra (ktc). Khi lng hn hp mui sunphat khan to ra l A. 4,25 gam. B. 8,25 gam. 8,35 gam. D. 2,61 gam. 426. Cho 1 lt dung dch cha HCl 0,005M v H2SO4 0,0025M. Gi tr pH ca dung dch l A. 1. B. 2. C. 3. D. 4. 427. Cho cc dung dch sau c cng nng mol/lt: (1) CH3COOH; (2) H2SO4; (3) HCl Gi tr pH ca cc dung dch theo th t: A. (1) < (2) < (3). B. (1) < (3) < (2). C. (3) < (1) < (2). D. (2) < (3) < (1). 428. t chy hon ton 1,8 gam mt amin no n chc cn 3,36 lt O2 (ktc). Vy cng thc phn t ca amin l A. CH3NH2. B. CH3CH2NH2. C. C3H7NH2. D. C4H9NH2. 429. Trong s cc hp cht sau, hp cht no khng to c lin kt hiro: C2H5OH, CH3CH2NH2, CH3COOC2H5, H2NCH2COOH, H2N NH2 CO A. C2H5OH. B. CH3CH2NH2. C. CH3COOC2H5 . D. H2NCH2COOH. 430. Nguyn nhn no sau y lm cho ru etylic d tan trong nc? A. C lin kt hiro vi nc. B. C lin kt hiro vi nhau. C. Do tc dng vi nc. D. Do C2H5OH l phn t c cc. 431. Nguyn nhn no sau y lm cho phenol d dng tc dng vi nc brom? A. Nhn thm benzen ht electron. B. Trn nguyn t Oxi cn cp electron t do, n lin kt vo nhn thm lm tng cng mt electron vo nhn thm ti cc v tr 2, 4, 6. C. Do nh hng ca c nhm OH ti vng benzen. D. Nhn thm benzen y electron. 432. Cho cc cht sau:

Trang 38 CH3 CHOH 3 (1), (CH3)3C CH OH (2), (CH3)2CH 2OH (3), CH3COCH2CH2OH (4), CH CH3CHOHCH2OH (5) Cht no b oxi ha bi CuO s to ra sn phm c phn ng trng gng? A. 1, 2, 3. B. 2, 3, 4. C. 3, 4, 5. D. 1, 4, 5. 433. Cho s phn ng sau:HNO3

A1

Fe/HCl

A2

Br2/H2O

A3

Cng thc cu to ca A3 lNH2 A.

NH2 B. Br Br

Br C.

NH2

Br

D. Tt c u saiBr

434. Hp cht hu c X c CTPT C2H4O2. X c th tham gia phn ng trng gng, tc dng vi Na gii phng H2, nhng khng tc dng NaOH. Vy CTCT ca X l A. HO 2 CH CHO. B. HCOOCH3. C. CH3COOH. D. HO CH=CH OH. 435. Dy cc cht u lm mt mu dung dch brom l A. CH4, C6H6. B. CH4, C2H2. C. C2H4, C2H2. D. C6H6, C2H2. 436. Dy cc cht u phn ng vi dung dch NaOH l A. CH3COOH, (C6H10O5)n. C. CH3COOH, C6H12O6. B. CH3COOC2H5, C2H5OH. D. CH3COOH, CH3COOC2H5. 437. Cho qu tm vo cc dung dch hn hp cha cht di y, dung dch no s lm qu tm ha hng? (1) H2N 2 CH COOH. (2) HOOC 2 CH CH(NH2) COOH. + (3) (H2N)2 2 CH COOH. (4) H3N 2 CH COOH. A. (1) v (3). B. (2) v (3). C. (1) v (4). D. (2) v (4). 438. Dy cc cht u c phn ng thu phn l A. tinh bt, xenluloz, fructoz. B. tinh bt, xenluloz, protein, saccaroz, lipit. C. tinh bt, xenluloz, protein, saccaroz, glucoz. D. tinh bt, xenluloz, protein, saccaroz, PE. 439. Cho chui phn ng: H 2 / Ni Cl2 / as H2O / OH O2 / Cu C3 H 6 B1 B2 B3 B4 Cng thc cu to ng nht cho B4 l A. CH3COCH3. B. CH3CH2CHO. C. CH3CHOHCH3. D. CH3COCHO. 440. Cho 36 gam glucoz vo dung dch AgNO3 1M /NH3 thy Ag kim loi tch ra. Khi lng Ag thu c v th tch dung dch AgNO3 cn dng (hiu sut cc phn ng t 100%) l A. m Ag = 21,6gam; Vdd AgNO 3 = 200 ml .

B. m Ag = 43,2gam; Vdd AgNO = 400 ml . C. m Ag = 21,6gam; Vdd AgNO = 400 ml . D. m Ag = 43,2gam; Vdd AgNO = 200 ml3 3 3

441.

Cho s phn ng sau: Cl2 / 500 oC Cl2 / H 2O NaOH Propen A B C Cng thc cu to ph hp ca C l A. CH3CH2CH2OH. B. CH2=CH 2OH. CH C. CH2OH CHOH 2OH. CH D. CH3 CHOH 2OH. CH

Trang 39 442. Cho s cc phn ng sau: H 2O / xt men Al 2O3 ,ZnO / 450 oC p,t o,xt Tinh bt X Y Z T Cng thc cu to ca T l A. ( 2 2 n. B. ( 2 CH CH ) CH CH=CH 2 n. CH ) CH CH C. CH2=CH 2OH. CH D. . CH3 CH3 n 443. Hp cht thm A c cng thc phn t l C8H8O2. A tc dng c Na, NaOH, tham gia phn ng trng gng. Vy cng thc cu to ph hp ca A l CHCHO HO CH CH2 A. B. OH HO CH2COOH CH2CHO HO C. D. 444. Ba hp cht hu c X, Y, Z c cng CTPT C3H6O2. Khi cho cc cht ln lt tc dng vi Na, NaOH, AgNO3/NH3 thu c kt qu sau: A B C Na + + NaOH + + Trng gng + (Qui c du + l c xy ra phn ng, du l khng xy ra phn ng) Cng thc cu to ca A, B, C ln lt l A. HCOOC2H5; CH3CH2COOH v CH3COCH2OH. B. CH3CH2COOH; CH3CHOHCHO; CH3COOCH3. C. CH3COOCH3; CH3CH2COOH ; HCOOC2H5. D. CH3CH2COOH; CH3COOCH3; CH3CHOHCHO. 445. Hirocacbon A c cng thc phn t l C5H12. Cho A tc dng Cl2/as vi t l 1:1 thu c mt dn xut monoclo duy nht. Vit cng thc cu to ca A. A. (CH3)4C. B. CH3CH2CH2CH2CH3. C. CH3CH2CH(CH3)2. D. Tt c u ng. 446. Mt anehit no A, mch h, khng phn nhnh c cng thc thc nghim l (C2H3O)n. Cng thc cu to ca A l A. OHC 2 2 CH CH CHO. B. HOCH2 CH=CH CHO. C. CH3 CH(CHO)2. D. CH3 CH2CHO. CO 447. Cho 15,2 gam mt ru no A tc dng Na d, thy thot ra 4,48 lt kh (ktc), A c th ha tan c Cu(OH)2. Vy cng thc cu to ph hp ca A l A. CH2OH 2 2OH. CH CH B. CH2OH CHOH 3. CH B. CH2OH CHOH 2OH. CH D. CH2OH 2OH. CH 448. trung ha 1 lt dung dch axit hu c X cn 0,5lt dung dch NaOH 1M, c cn thu c 47 gam. mui khan. Mt khc khi cho 1 lt dung dch axit trn tc dng vi nc Br2 lm mt mu hon ton 80g Br2. Cng thc cu to ph hp ca X l A. CH2=CH COOH. B. CH2=CH 2 CH COOH. C. CH3 CH=CH COOH. D. CH3 2 CH COOH. 449. Cho 14,8 gam mt este no n chc A tc dng va vi 100ml dung dch NaOH 2M. Tm CTCT ca A bit rng A c tham gia phn ng trng gng: A. CH3COOCH=CH2. B. HCOOCH3. C. CH2=CH COOH. D. HCOOCH2CH3. 450. Khi lng glucoz cn iu ch 0,1 lt ru tylic (khi lng ring D = 0,8 g/ml) vi hiu sut 80% l A. 180 gam. B. 195,65 gam. C. 186,55 gam. D. 200 gam.

Trang 40 P N 19: 1. D 6. C 2. B 7. B 3. C 8. D 4. D 9. A 5. D 10. C 11. C 12. B 13. D 14. A 15. C 16. A 17. D 18. B 19. B 20. A 21. C 22. B 23. D 24. A 25. B 26. B 27. D 28. B 29. C 30. A 31. B 32. C 33. C 34. A 35. C 36. D 37. D 38. B 39. A 40. B 41. C 42. B 43. D 44. D 45. A 46. A 47. B 48. A 49. D 50. B

S 20 451. Mt anken (c 6 nguyn t C), phn ng vi dung dch KMnO4, trong mi trng axit, ch cho mt sn phm oxi ha l CH3 CH3, anken l CO A. 2,3-imetyl-2-buten. B. 3-metyl-2-penten. C. isopren. D. trans-3-hexen. 452. Cho phn ng sau: Mg + HNO3 Mg(NO3)2 + NO + NO2 + H2O Nu t l s mol gia NO v NO2 l 2:1, th h s cn bng ti gin ca HNO3 trong phng trnh ho hc l A. 12. B. 30. C. 18. D. 20. 453. in phn dung dch CuSO4 nng 0,5M vi in cc tr trong th thu c 1 gam ng. in lng tiu tn ti thiu l A. 3015 C. B.2870 C. C.1212 C. D.2550 C. 454. C th iu ch bc kim loi t dung dch AgNO3 bng cch A. in phn vi in cc than ch. B. nhit phn. C. in phn vi in cc Au. D. cho tc dng vi kim loi mnh nh canxi. 455. in phn dung dch CuSO4 nng 0,5M vi in cc tr trong th thu c 1gam Cu. Nu dng dng in mt chiu c cng 1A, th thi gian in phn ti thiu l A. 50 pht 15 giy. B. 40 pht 15 giy. C. 0,45 gi. D. 0,65 gi. 456. Phng php thy luyn dng iu ch A. kim loi c tnh kh yu. B. kim loi m ion dng ca n c tnh oxy ha yu. C. kim loi hot ng mnh. D. kim loi c cp oxi ha-kh ng trc Zn2+/Zn. 457. Ha tan m gam hn hp 2 mui cacbonat kim loi ha tr (I) v (II) bng dung dch HCl d thu c dung dch A v V lt kh CO2 (ktc). C cn dung dch A thu c (m+3,3) gam mui khan. Tnh V? A. 2,24 lt. B. 3,72 lt. C. 6,72 lt. D. 8,96 lt. 458. Cho cc cht A (C4H10), B (C4H9Cl), C (C4H10O), D (C4H11N). Nguyn nhn gy ra s tng s lng cc ng phn t A n D l do A. ha tr ca cc nguyn t th tng lm tng th t lin kt trong phn t. B. m in khc nhau ca cc nguyn t. C. cc bon c th to nhiu kiu lin kt khc nhau. D. khi lng phn t khc nhau. 459. A v B l 2 axit cacboxylic n chc. Trn 1,2 gam A vi 5,18 gam B c hn hp X. trung ha ht X cn 90 ml dung dch NaOH 1M. Trn 7,8 gam A vi 1,48 gam B c hn hp Y. trung ha ht Y cn 75 ml dung dch NaOH 2M. Cng thc ca A, B ln lt l

A. CH3COOH v C2H3COOH. C. C2H5COOH v CH3COOH. 460. S ng phn cu to ca C5H10 l A. 11. B. 10. C. 9. D.8. 461. lm thay i pH ca dung dch (dung mi nc) t 4 thnh 6, th cn pha dung dch vi nc theo t l th tch l A. 1:99. B. 99:1. C. 2:3. D. 3:2. 462. Dung dch c pH = 4 s c nng ion OH bng A. 10 4. B. 4. C. 10 10. D. 104. 463. Khi trn nhng th tch bng nhau ca dung dch HNO3 0,01M v dung dch NaOH 0,03M th thu c dung dch c pH bng A. 9. B. 12,3. C. 13. D.12. 464. Cho cc cht A (C4H10), B (C4H9Cl), C (C4H10O), D (C4H11N). S lng cc ng phn ca A, B, C, D tng ng l A. 2; 4; 6; 8. B. 2; 3 ; 5; 7. C. 2; 4; 7; 8. D. 2; 4; 5; 7. 465. S cp ng phn cis-trans ca C5H10 l A. 1. B. 2. C. 3. D. 4. 466. Phng php no di y thng dng iu ch kim loi phn nhm ph nh Crom, Mangan, St... A. in phn mui nng chy, hoc phn hy nhit hoc khai thc dng kim loi t do. B. Kh bng cc cht kh ha hc hoc kh cc qung sunfua bng Cacbon nhit cao C. Dng kim loi mnh y kim loi yu ra khi dung dch mui. D. in phn dung dch mui. 467. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) X ri cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. X c th gm A. 2 ankan. B. 1 ankin +1 anken. C. 1 ankan +1 anken. D. 1 ankan +1 ankin. 468. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) kh X c khi lng l m gam, v cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. Nu t l khi lng ca A v B l 22:13, th khi lng m (gam) X ly A. 10. B. 9,5. C. 10,5. D.11. 469. Hn hp X gm hai hirocacbon A, B thuc loi ankan, anken, ankin. t chy hon ton 6,72 lt (ktc) kh X c khi lng l m gam, v cho tt c sn phm chy hp th hon ton vo bnh ng nc vi trong d, thy khi lng bnh tng thm 46,5 gam v c 75 gam kt ta. Nu t l khi lng ca A v B l 22:13, th s gam cht A trong m gam X l A. 4,4. B. 4,5. C. 5,6. D.6,6. 470. Nitro ha benzen thu c 2 hp cht nitro X, Y hn km nhau mt nhm NO2. t chy hon ton 2,3 gam hn hp X, Y thu c CO2, H2O v 0,224 lt N2 (ktc). Cng thc phn t ca X, Y l A. C6H5NO2 v C6H4(NO2)2. B. C6H4(NO2)2 v C6H3(NO2)3. C. C6H5NO2 v C6H3(NO2)3. D. khng xc nh c. 471. Aminoaxit iu kin thng l cht rn, kt tinh, tan tt trong nc v A. aminoaxit c nhm chc axit. B. aminoaxit c nhm chc baz. C. aminoaxit c cu to tinh th ion lng cc. D. aminoaxit va c tnh axit va c tnh baz. 472. Este A c iu ch t aminoaxit B v ru etilic. 2,06 gam A ha hi hon ton chim th tch bng th tch ca 0,56 gam nit cng iu kin. A c cng thc cu to l A. NH2 2 2 CH CH COO 2 3. CH CH

Trang 41 B. C2H3COOH v C2H5COOH. D. CH3COOH v C2H5COOH.

Trang 42 B. NH2 2 CH COOCH2 3. CH C. CH3 NH COO 2 3. CH CH D. CH3 COONH 2 3. CH CH 473. Khi lng phn t ca mt loi t capron bng 16950 vC, ca t enang bng 21590 vC. S mt xch trong cng thc phn t ca mi loi t trn ln lt l A. 120 v 160. B.200 v 15