TuyenChonVaGioiThieu90DeThiThuMonHoaHoc LePhamThanh 0976(2).053.496 T.01

Tuyn sinh lp TNG N LUYN LUYN PHNG PHP GII NHANH Thy L Phm Thnh

C s I: Ng 72 - Tn Tht Tng (gn H Y H Ni) C s II: S 27 - T Hiu - H ng (gn Cu en)

GII THIU

90 THI TRC NGHIM

CHN LC

MN HA HC

TP I (Tuyn chn v bin tp: Thy L PHM THNH)



LUYN THI LPT 001 Yu cu cn t c: Lm ht 50 Cu Thi gian: 80 pht

H v tn th sinh : .. Lp : ...

Cho bit khi lng nguyn t (tnh theo vC) ca cc nguyn t: H = 1; C = 12; N = 14; O = 16; F = 19; Cl = 35,5; I = 127; Si = 28; P = 31; S = 32; Na = 23; Mg = 24; Al = 27;

K = 39; Ca = 40; Cr = 52; Fe = 56; Ni = 58; Cu = 64; Zn = 65; Ag = 108; Ba = 137.

I. PHN CHUNG CHO TT C TH SINH (40 cu, t cu 1 n cu 40) Cu 1: Ho tan ht a (g) oxit MO (M c ho tr 2 khng i) bng mt lng va dung dch H2SO4 17,5% thu c dung dch mui c nng 20%. Hy cho bit, khi cho kh CO d i qua ng s ng 12 gam oxit MO thu c bao nhiu gam cht rn ? A. 12. B. 7,2 gam C. 9,6 gam D. 5,4 gam Cu 2: Hn hp X cha 4,48 lit (ktc) hn hp kh X gm H2, anken A v ankin B. Nung nng X vi Ni phn ng xy ra hon ton thu c hn hp kh Y. Bit t khi ca hn hp Y so vi hn hp X l 4/3. S mol H2 d sau phn ng l A. 0,175. B. 0,12. C. 0,05. D. 0,09. Cu 3: Ha tan hon ton 7,8 gam hn hp gm Mg v Al trong dung dch HCl d, sau phn ng thy khi lng dung dch tng thm 7 gam. Khi lng Al trong hn hp ban u l A. 2,4 gam B. 2,7 gam C. 4,5 gam D. 5,4 gam Cu 4: Sc a mol kh CO2 vo dung dch Ca(OH)2 thu c 3 gam kt ta. Lc tch kt ta dung dch cn li mang un nng thu c thm 3 gam kt ta na. Gi tr ca a l: A. 0,08 B. 0,07 C. 0,06 D. 0,09 Cu 5: S ng phn cu to mch h ca C5H8 khng tc dng vi dung dch AgNO3/NH3 l A. 4 B. 8 C. 5 D. 7 Cu 6: Trung ha 3,1 gam mt amin n chc X cn 100 ml dung dch HCl 1M. Cng thc phn t ca X l A. C3H7N. B. CH5N. C. C3H9N. D. C2H5N. Cu 7: Cho hn hp gm 6,4 gam Cu v 5,6 gam Fe vo cc ng dung dch HCl long d. tc dng ht vi cc cht c trong cc sau phn ng vi dung dch HCl (sn phm kh duy nht l NO), cn t nht khi lng NaNO3 l A. 5,7 gam. B. 17 gam. C. 2,8 gam. D. 8,5 gam.



Cu 8: C 200 ml dung dch hn hp gm cc ion: Na+: 1 mol/l; K+: 1 mol/l; Cl; 24SO : a mol/l. C cn dung dch ny th thu c 29,1 gam mui khan kt tinh. Gi tr ca a l: A. 1 B. 0,5 C. 0,67 D. 0,25 Cu 9: Trong cc cht sau: Na (1) ; C2H5OH (2); Cu(OH)2 (3) ; H2 (4) ; dd AgNO3/NH3 (5); O2 (6), dd NaOH (7) ; Na2CO3 (8) ; (CH3CO)2O (9). Glucoz phn ng c vi cc cht: A. 4, 5, 6, 7, 8, 9 B. 1, 3, 4, 5, 6 C. 3, 4, 5, 6, 7, 8 D. 1, 3, 4, 5, 6, 9 Cu 10: Mt este n chc c thnh phn khi lng mC : mO = 3 : 2. Cho este trn tc dng mt lng dung dch NaOH va thu c mt mui c khi lng bng 12/11 khi lng este. Cng thc cu to este l A. C2H5COOCH3. B. HCOOCH=CH2. C. HCOOC2H5. D. CH3COOCH3. Cu 11: Hy cho bit khi lng kt ta thu c khi sc kh H2S d vo 100 ml dung dch CuCl2 0,5M v ZnCl2 0,6M ? A. 10,62 gam B. 5,82 gam C. 4,8 gam D. 5,28 gam Cu 12: Ngm mt vt bng Cu c khi lng 115 gam trong 340 gam dung dch AgNO3 6%. Sau mt thi gian ly vt ra thy khi lng AgNO3 trong dung dch gim 25%. Khi lng ca vt sau phn ng l (gi thit ton b lng Ag sinh ra u bm vo vt bng Cu): A. 119,56 gam. B. 112,72 gam. C. 110,44 gam. D. 117,28 gam. Cu 13: Nung 13,6 gam hn hp Mg, Fe trong khng kh mt thi gian thu c hn hp X gm cc oxit c khi lng 19,2 gam. ha tan hon ton X cn V ml dd HCl 1M. Gi tr ti thiu ca V l A. 600ml. B. 800ml. C. 700ml. D. 500ml. Cu 14: Cho hn hp cha ton b cc anken th kh iu kin thng tc dng vi H2O (xt: H+) to ra hn hp cha ti a bao nhiu ancol: A. 7. B. 8. C. 6. D. 5. Cu 15: Este X to thnh t aminoaxit v ancol etylic. t chy hon ton 10,3 gam X thu c 17,6 gam kh CO2, 8,1 gam H2O v 1,12 lit N2 (ktc). Aminoaxit to thnh X l A. CH3-CH2-CH(NH2)-COOH. B. H2N-CH2-COOC2H5. C. H2N-CH2-COOH. D. H2N-CH(CH3)-COOC2H5 Cu 16: Pht biu no sau y khng ng: A. Kim loi kim l cc nguyn t thuc nhm IA B. Kim loi kim th l cc nguyn t thuc nhm IIA C. Trong bng tun hon chu k 1 c t nguyn t ho hc nht D. Chu k 4, 5, 6, 7 l cc chu k ln



Cu 17: Ho tan hon ton 18,5 gam hn hp X gm Cu, Fe v Zn trong dung dch H2SO4 c, nng thu c m1 gam hn hp 3 mui v 8,4 lt kh SO2 (ktc). Xc nh m1? A. 54,5 gam B. 51,2 gam C. 47,3 gam D. 49,6 gam Cu 18: Hn hp X gm Al2O3, MgO, Fe3O4, CuO. Cho kh CO d qua X nung nng c cht rn Y . Ha Y vo dung dch NaOH d c dung dch E v cht rn G. Ha tan cht rn G vo dd Cu(NO3)2 d thu c cht rn F. Xc nh thnh phn ca cht rn F. A. Cu, Al, Mg, Fe. B. Cu, MgO, Fe3O4. C. Cu, Al2O3, MgO, Fe3O4 D. Cu, MgO. Cu 19: Ba ancol X, Y, Z khng phi l ng phn ca nhau. t chy hon ton mi cht u thu c CO2 v H2O vi t l s mol 3 : 4. Cng thc phn t ba ancol l A. C3H6O; C3H6O2; C3H6O3. B. C3H8O; C4H8O; C5H8O. C. C3H8O; C3H8O2; C3H8O4. D. C3H8O; C3H8O2; C3H8O3. Cu 20: Xiclopropan phn ng c vi nhng cht no trong cc cht sau: H2, HBr, Br2, Na, NaOH. A. H2, Br2. B. H2, HBr, Br2. C. H2, Br2, Na. D. H2, HBr, Br2, NaOH. Cu 21: Trong phng trnh phn ng:

K2SO3 + KMnO4 + KHSO4 K2SO4 + MnSO4 + H2O Tng h s nguyn ti gin sau khi cn bng ca cc cht tham gia phn ng l: A. 13. B. 14. C. 18. D. 15. Cu 22: Nung nng hn hp gm 5,6 gam Fe vi 4 gam bt S trong bnh kn mt thi gian c hn hp X gm FeS, FeS2, Fe v S d. Cho X tan ht trong dung dch H2SO4 c, nng d c V lt kh (ktc). Gi tr ca V l A. 11,76 B. 8,96 C. 3,36 D. 11,65 Cu 23: C cc hp cht hu c c cng thc phn t ln lt l: CH2O, CH2O2, C2H2O3 v C3H4O3. C bao nhiu hp cht mch h tha mn tnh cht: va tc dng vi Na, va tc dng vi dung dch NaOH, va c phn ng trng gng ? A. 5 B. 4 C. 1 D. 3 Cu 24: t chy hon ton 2,24 lit hn hp X gm HCHO, CH4, C3H8 (ktc), sau phn ng thu c 5,6 lit kh CO2 (ktc). Phn trm th tch propan trong X l A. 50%. B. 75%. C. 40%. D. 25%. Cu 25: Cho cc phn t: HCl; CO2; N2; NH3; SO2; CO. S phn t c lin kt cho-nhn l: A. 4 B. 3 C. 2 D. 1



Cu 26: phn bit phenol, anilin, benzen, stiren c th s dng ln lt cc thuc th: A. Dung dch Brom, qu tm B. Qu tm, dung dch Brom C. Dung dch NaOH, dung dch Brom D. Dung dch HCl, qu tm. Cu 27: Cho hn hp cc kh N2, Cl2, HCl, SO2, CO2, H2 v O2. Sc t t qua dung dch NaOH d th thu c hn hp kh bay ra c thnh phn l: A. N2, H2, O2 B. Cl2, H2, O2, N2, CO2 C. N2, Cl2, H2, O2 D. N2, H2 Cu 28: Cho kh H2 qua m gam hn hp X gm FeO v CuO thu c 3,6 gam H2O v hn hp Y gm 4 cht. Ha tan hon ton hn hp Y trong dung dch H2SO4 c, nng d thu c 6,72 lt SO2 (ktc). Xc nh khi lng FeO trong hn hp X ? A. 10,8 gam B. 21,6 gam C. 7,2 gam D. 14,4 gam Cu 29: Cho m gam hn hp gm ancol etylic v etilenglicol tc dng ht vi Na thu c 4,48 lt H2 (ktc). Nu cho 2m gam X tc dng ht vi CuO nung nng th thu c bao nhiu gam Cu ? A. 12,8 B. 25,6. C. 51,2. D. 16. Cu 30: Hn hp A gm axit X n chc v axit Y hai chc (X, Y c cng s nguyn t cacbon). Chia A thnh 2 phn bng nhau. Cho phn 1 tc dng ht vi Na sinh ra 4,48 lt H2 (ktc). t chy hon ton phn 2 sinh ra 26,4 gam CO2. Cng thc cu to thu gn v phn trm khi lng Y trong hn hp A ln lt l A. HOOC-CH2-COOH v 54,88%. B. HOOC-COOH v 66,67%. C. HOOC-COOH v 42,86%. D. HOOC-CH2-COOH v 70,87%. Cu 31: Oxi ha 12 gam hn hp 1 ancol n chc v 1 andehit n chc thu c 1 axit hu c duy nht (h = 100%). Cho lng axit ny tc dng ht vi m gam dung dch NaOH 2% v Na2CO3 13,25% thu c dung dch ch cha mui hu c vi nng 18,84%. Andehit ban u l A. Etanal. B. Butanal. C. Metanal. D. Propanal. Cu 32: Cho nguyn t ca nguyn t X c cu hnh electron trng thi c bn l [Ar]3d104s2. Pht biu no sau y khng ng khi ni v X: A. X l nguyn t thuc chu k 4. B. Ion X2+ c 10 electron lp ngoi cng C. X l kim loi tan c c trong dung dch HCl v dung dch NaOH. D. X l kim loi chuyn tip



Cu 33: C th tn ti mt dung dch no cha cc ion sau: A. Na+, Cu2+, OH, 3NO

. B. K+, 4NH+, H+.

C. Al3+, 4NH+ , H+, Cl. D. K+, H+, 3NO , 23CO . Cu 34: Cho cc dung dch ca cc cht sau: NH2-CH2-COOH (1); ClH3N-CH2-COOH (2); NH2-CH2-COONa (3); NH2-(CH2)2CH(NH2)-COOH (4); HOOC-(CH2)2CH(NH2)-COOH (5). Cc dung dch lm qu tm ho l: A. (3) B. (2) C. (1), (4). D. (2), (5) Cu 35: Ho tan hon ton hn hp X (Na, Mg, Al) vo nc, c 8,96 lt kh (ktc); 5,1 gam cht rn khng tan Y v dung dch Z. Cho ton b Y vo dung dch HCl d c 0,25 mol H2. Khi lng Al trong X bng A. 5,4 gam B. 2,4 gam C. 4,5 gam D. 8,1 gam Cu 36: Cho cc cht sau: phenol, etanol, axit axetic, natri phenolat, natri hiroxit. S cp cht tc dng c vi nhau l A. 3. B. 4. C. 2. D. 1. Cu 37: Nhng thanh Zn vo dung dch mui X, sau khi phn ng hon ton ly thanh Zn ra thy khi lng thanh Zn gim. Hy cho bit dy cht no sau y c th l mui X? A. Cu(NO3)2, Fe(NO3)2, Al(NO3)3 v Ni(NO3)2 . B. NaNO3, Al(NO3)3, Cu(NO3)2 v Pb(NO3)2 C. Mg(NO3)2, Fe(NO3)3, Cu(NO3)2 v Pb(NO3)2. D. Fe(NO3)2, Fe(NO3)3, Cu(NO3)2 v Ni(NO3)2 Cu 38: un nng phenol vi anehit fomic theo t l mol 1:1 trong mi trng axit ta thu c:

A. hn hp hai cht hu c tan vo nhau v khng c phn ng. B. polime c cu trc mch h phn nhnh. C. polime c cu trc mng khng gian bn. D. polime c cu trc mch khng phn nhnh. Cu 39: Ho tan 0,54 gam Al trong 0,5 lt dung dch H2SO4 0,1M thu c dung dch X. Thm V lt dung dch NaOH 0,1 M vo X cho n khi kt ta tan tr li mt phn. Lc v nung kt ta thu c n khi lng khng i thu c cht rn nng 0,51 gam. V c gi tr l: A. 1,2 lt B. 1,1 lt C. 1,5 lt D. 0,8 lt Cu 40: Cho cc cht: ancol metylic, glixerol, etylenglicol, axit lactic. cho m gam mi cht tc dng hon ton vi Na d, cht to ra H2 nhiu nht l A. axit lactic B. etylenglicol C. glixerol D. ancol metylic



II. PHN RING (10 cu): Th sinh ch c lm mt trong hai phn (A hoc B)

A. Theo chng trnh CHUN (10 cu, t cu 41 n cu 50) Cu 41: Nc ngm thng cha nhiu ion kim loi c nh Fe2+ di dng mui st (II) hirocacbonat v st (II) hiroxit. Nc sinh hot c cha Fe2+ nh hng xu n sc kho con ngi. Dng phng php no sau y n gin nht, tin li nht c th p dng quy m h gia nh lm nc sch: A. Dng lng NaOH va . B. Dng Na2CO3 C. Dng gin phun ma cc ion tip xc vi khng kh.. D. Phng php trao i ion Cu 42: Cho cc cht: C4H10, C5H12, C6H14, C7H16, C8H18. C bao nhiu ankan tn ti mt ng phn m khi ng phn tc dng vi kh Cl2 (t l 1:1) ch to ra 1 sn phm monoclo duy nht ? A. 5. B. 2 C. 4 D. 3 Cu 43: Cho cc cht: etylenglicol, glixylalanylglixin, glixerol, ancoletylic, mantoz, xenluloz. S cht ha tan c Cu(OH)2 l A. 4 B. 6. C. 5 D. 3 Cu 44: Cho 23,4 gam hn hp X gm 2 ancol n chc k tip nhau trong dy ng ng tc dng ht vi 13,8 gam Na thu c 36,75 gam cht rn. Nu cho 15,6 gam X tch nc to ete (h = 100%) th khi lng ete thu c l A. 13,75 gam B. 19,35 gam C. 10,20 gam D. 12,90 gam Cu 45: Hn hp X gm HCHO v CH3CHO. Khi oxi ha m gam X bng O2 thu c (m + 1,2) gam Y gm 2 axit tng ng (h = 100%). Cho m gam X tc dng vi dung dch AgNO3/NH3 thu c 21,6 gam Ag, Phn trm khi lng CH3CHO trong X l A. 74,58% B. 85,44% C. 25,42% D. 14,56% Cu 46: Cho mt lng este n chc X tc dng vi dung dch NaOH va thu c 26,5 gam hn hp 2 mui, trong khi lng mui ny bng 63,08% khi lng mui kia. Cng thc ca X l A. CH3COOC6H4CH3 B. CH3COOC6H5 C. HCOOC6H4CH3 D. C2H5COOC6H5 Cu 47: Ho tan hon ton m gam kim loi Cr bng dung dch HCl, sau phn ng thu c 2,24 lt kh (ktc). Khi lng lu hunh ti thiu cn dng phn ng ht vi lng Cr trn l: A. 3,2 gam. B. 4,8 gam. C. 6,4 gam. D. 1,6 gam.



Cu 48: Nhng thanh km v thanh ng (khng tip xc vi nhau) vo cc ng dung dch H2SO4 long. Ni thanh km vi thanh ng bng dy dn cho i qua mt in k. Quan st thy hin tng: kim in k quay; thanh Zn b mn dn, bt kh H2 thot ra c thanh Cu. Chn pht biu sai: A. in cc Zn l anot; in cc Cu l catot B. Kim in k quay do c dng in chy t thanh Zn sang thanh Cu C. Thanh Zn b n mn ho hc v n mn in ho D. Thanh Zn b n mn in ho Cu 49: Ha tan hn hp gm st v 1 oxit ca st bng H2SO4 c, nng,d. Sau phn ng thy thot ra 0,448 lt kh SO2 (ktc) v c 0,2 mol H2SO4 tham gia phn ng. C cn dung dch sau phn ng khi lng mui khan thu c l: A. 32 gam B. 24 gam C. 40 gam D. 16 gam Cu 50: Mt loi qung cha st trong t nhin c loi b tp cht. Ho tan qung ny trong dung dch HNO3 thy c kh mu nu bay ra. Qung khng th l: A. xierit B. hematit C. manhetit D. pirit st

B. Theo chng trnh NNG CAO (10 cu, t cu 51 dn cu 60) Cu 51: Cho cc cht sau: NaOH; HCl; HNO3; AgCl; NH3; CH3COONa. S cht l cht in li mnh trong dy cht trn l: A. 5 B. 4 C. 6 D. 3 Cu 52: Cho kh H2 qua 21,6 gam FeO thu c m gam hn hp X v 3,6 gam nc. Cho hn hp X vo dung dch AgNO3 d. Khi lng cht rn thu c trong dung dch sau phn ng l A. 7,2 gam B. 70,0 gam C. 72 gam D. 50,4 gam Cu 53: Trong mt bnh kn c cha kh C2H2 v cht xc tc CuCl, NH4Cl. Nung nng bnh mt thi gian thu c hn hp kh A cha 2 hirocacbon vi hiu sut phn ng l 60%. Cho A hp th ht vo dung dch AgNO3/NH3 thu c 43,11 gam kt ta. Khi lng C2H2 ban u l A. 7,8 gam B. 10,4 gam C. 15,6 gam. D. 5,2 gam Cu 54: Cho m gam hn hp Al v Mg tc dng va vi 0,15 mol O2 v 0,15 mol Cl2. Nu cho m gam hn hp kim loi trn vo dung dch HNO3 d th thu c V lt kh NO (sn phm kh duy nht ktc). Gi tr ca V l: A. 4,48 lt. B. 7,466 lt. C. 6,72 lt. D. 3,36 lt.



Cu 55: Cho sut in ng chun ca cc pin in ho: oNi XE 1,06V; = o o

Y Ni Ni ZE 0,50V; E 1,76V = = (X, Y, Z l cc kim loi khc st). Khi in phn dung dch hn hp mui nitrat ca cc kim loi X, Y, Z, Ni (in cc tr, c mng ngn) th cc kim loi thot ra ca tt theo th t (t tri qua phi) l: A. X, Z, Y, Ni B. Z, X, Ni, Y C. Z, X, Y, Ni D. X, Z, Ni, Y Cu 56: T 1 andehit no n chc mch h X c th chuyn ha thnh ancol Y v axit Z tng ng iu ch este E. Khi un nng m gam E vi dung dch KOH d thu c m1 gam mui, nu un nng m gam E vi dung dch Ca(OH)2 d thu c m2 gam mui. Bit m2 < m < m1. X l A. Andehit acrylic. B. Andehit propionic. C. Andehit axetic. D. Andehitfomic. Cu 57: Khi ho tan SO2 vo H2O, c cc cn bng sau:

SO2 + H2O H2SO3 H2SO3 H+ + 3HSO

3HSO

H+ + 23SO

Tin hnh bn th nghim: (1) un nng dung dch; (2) Thm dd HCl; (3) Thm dd NaOH; (4) Thm dd KMnO4. Trong bn th nghim trn, s th nghim lm cho nng SO2 trong dung dch gim l: A. 3 B. 2 C. 1 D. 4 Cu 58: Axit phtalic C8H6O4 dng nhiu trong sn xut cht do v dc phm. N c iu ch bng cch oxi ha naphtalen bng O2 (xt: V2O5, 450oC) thu c anhirit phtalic ri cho sn phm tc dng vi H2O thu c axit phtalic. Nu hiu sut mi qu trnh l 80% th t 12,8 tn naphtalen s thu c lng axit phtalic l A. 13,802 tn. B. 10,624 tn. C. 10,264 tn. D. 13,28 tn. Cu 59: Chn mnh khng ng khi ni v benzen: A. benzen 3 lin kt i ngn hn 3 lin kt n. B. benzen 6 lin kt cacbon - cacbon u nh nhau. C. Benzen phn ng vi HNO3 (H2SO4 c) kh hn so vi toluen. D. Benzen l mt hirocacbon thm Cu 60: un nng hn hp gm 1 mol axit X c cng thc phn t C4H6O4 vi 1 mol CH3OH (xt: H2SO4 c) thu c 2 este E v F (MF > ME). Bit mE = 1,81mF v ch c 72% lng ancol b chuyn ha thnh este. Khi lng (gam) E v F ln lt l A. 50,87 v 28,26 B. 38,42 v 21,34 C. 47,52 v 26,28 D. 28,26 v 15,72





Cho bit khi lng nguyn t (tnh theo vC) ca cc nguyn t: H = 1; C = 12; N = 14; O = 16; F = 19; Cl = 35,5; I = 127; Si = 28; P = 31; S = 32; Na = 23; Mg = 24; Al = 27;

K = 39; Ca = 40; Cr = 52; Fe = 56; Ni = 58; Cu = 64; Zn = 65; Ag = 108; Ba = 137.

I. PHN CHUNG CHO TT C TH SINH (40 cu: T cu 1 n cu 40)

Cu 1: Sc kh CO2 vo cc dung dch ring bit cha cc cht: NaAlO2, NaOH d, Na2CO3, NaClO, CaOCl2, Ca(HCO3)2, CaCl2. S phn ng ho hc xy ra l: A. 7 B. 5 C. 6 D. 8. Cu 2: Nhng mt l st nh vo dung dch cha mt trong cc cht sau: FeCl3, AlCl3, CuSO4, Pb(NO3)2, NaCl, HCl, HNO3 long, H2SO4 (c, nng), NH4NO3. S trng hp phn ng to mui Fe(II) l: A. 5 B. 6 C. 4 D. 7 Cu 3: Cho 32,48 gam MxOy phn ng hon ton vi CO nhit cao. Cho hn hp kh sau phn ng vo dung dch Ba(OH)2 d thu c 110,32 gam kt ta. Cng thc MxOy l: A. Fe2O3. B. Fe3O4 C. FeO. D. CuO Cu 4: 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. Cu 5: Hn hp M gm 2 cht hu c X v Y. Cho M tc dng va vi 20ml dung dch NaOH 2M thu c mt mui v mt ancol. un nng lng ancol thu c trn vi H2SO4 c 1700C to ra 369,6 ml olefin kh 27,30C v 1atm. Nu t chy hon ton lng hn hp M trn ri cho sn phm qua bnh ng dung dch NaOH d th khi lng bnh tng 7,75 gam. X v Y ln lt l A. C2H5COOH v C2H5COOCH3 B. CH3COOH v CH3COOC3H7 C. HCOOH v HCOOC3H7. D. HCOOH v HCOOC2H5



Cu 6: Trn 400 ml dung dch X cha Na+, K+, x mol OH (tng s mol Na+ v K+ l 0,06 mol) vi 600 ml dung dch Y cha 0,01 mol 24SO

, 0,03 mol Cl, y mol H+. pH ca dung dch thu c sau phn ng l: A. 1,0. B. 12,0. C. 13,0. D. 2,0. Cu 7: Ha tan ht 10,24 gam Cu bng 200 ml dung dch HNO3 3M c dung dch X. Thm 400 ml dung dch NaOH 1M vo X. C cn dung dch sau phn ng, ri nung n khi lng khng i thu c 26,44 gam cht rn. S mol HNO3 phn ng vi Cu l: A. 0,4 mol. B. 0,56 mol. C. 0,58 mol. D. 0,48 mol. Cu 8: Cho cc cht: etilen (1); axetilen (2); etan (3); stiren (4); toluen (5); buta-1,3-ien (6); xiclopropan (7). Cht no c kh nng lm mt mu dung dch Brom: A. (1); (2); (3); (4); (5); (6). B. (1); (2); (4) ; (5) (6). C. (1); (2); (4); (6). D. (1); (2); (4); (6); (7). Cu 9: Nhng mt thanh magie vo dung dch c cha 0,8 mol Fe(NO3)3 v 0,05 mol Cu(NO3)2. Sau mt thi gian, ly thanh kim loi ra, ra sch, cn li thy khi lng tng 11,6 gam so vi thanh kim loi ban u. Khi lng magie phn ng l: A. 20,88 gam. B. 6,96 gam. C. 24 gam. D. 25,2 gam. Cu 10: Crackinh 8,8 gam propan thu c hn hp A gm H2, CH4, C2H4, C3H6 v mt phn propan cha b crakinh. Bit hiu sut phn ng l 80%. Khi lng phn t trung bnh ca A l: A. 24,44 B. 23,16 C. 22,00 D. 23,61 Cu 11: Nhng thanh Zn, thanh Cu v thanh hp kim Zn-Cu ln lt vo ba cc 1, 2, 3 u cha dung dch HCl nng bng nhau. Hy cho bit tc thot kh H2 cc no din ra nhanh nht ? A. Cc 3. B. Cc 1 v 3. C. Cc 1. D. Cc 2. Cu 12: Trong cc dy cht sau, cc cht trong dy c th s dng trc tip tng hp cao su l: A. Vinyl clorua, butaien, isopren, acrilonitrin. B. Acrilonitrin, stiren, anehit fomic, propilen. C. Isopren, metyl metacrylat, acrilonitrin, stiren . D. Butaien, isopren, acrilonitrin, stiren. Cu 13: X l mt axit cacboxylic. Cho m gam X tc dng vi dung dch NaHCO3 d to V lt kh CO2 (P atm, toC). Mt khc, cng m gam X chy hon ton trong oxi to V lt kh CO2 (P atm, toC). X l A. (COOH)2 B. C2H5COOH C. CH3COOH D. CH2=CHCOOH



Cu 14: t chy hon ton 20,0 ml hn hp X gm C3H6, CH4, CO (th tch CO gp hai ln th tch CH4), thu c 24,0 ml CO2 (cc kh o cng iu kin to, p). T khi ca X so vi kh hiro l A. 12,9. B. 11,1. C. 25,8. D. 22,2. Cu 15: Mt cht hu c X c t khi so vi metan l 4,25. Bit 0,2 mol X tc dng va vi 0,6 mol AgNO3/NH3 thu c 43,2 gam Ag. CTCT ca X l: A. HC C CH2 CHO B. H3C C C CHO C. HCOO CH2 C CH D. H2C = C = CH CHO Cu 16: Cho 10,0 gam hn hp X gm Mg v Zn vo 400 ml dung dch H2SO4 1,1M thu c kh H2. Cho ton b lng kh i qua CuO d thy khi lng cht rn gim 4,48 gam. Vy % khi lng ca Mg trong hn hp X l : A. 48%. B. 60%. C. 36%. D. 24%. Cu 17: X l hn hp kh H2 v N2 c t khi i vi oxi bng 0,225. Dn X vo bnh kn c Ni un nng thu c hn hp kh Y c t khi i vi oxi bng 0,25. Hiu sut ca qu trnh tng hp NH3 l: A. 15%. B. 25%. C. 30%. D. 20%. Cu 18: Mt hn hp A gm hai ancol c khi lng 16,6 gam un vi dung dch H2SO4 m c thu c hn hp B gm hai olefin ng ng lin tip, 3 ete v 2 ancol d c khi lng bng 13 gam. t chy hon ton 13gam hn hp B trn thu c 0,8 mol CO2 v 0,9 mol H2O. Cng thc phn t v % (theo s mol) ca mi ancol trong hn hp l: A. C2H5OH 50% v C3H7OH 50%. B. C2H5OH 66,67% v C3H7OH 33,33% C. C2H5OH 33,33% v C3H7OH 66,67%. D. CH3OH 50% v C2H5OH 50% Cu 19: Ha tan hon ton 3 gam hn hp X gm Mg, Zn, Fe trong dung dch HNO3 long d. Sau phn ng thu c dung dch Y cha 16,95 gam mui (khng c NH4NO3) v 1,68 lt kh Z (ktc). Z c th l: A. NO. B. NO2. C. N2O. D. N2. Cu 20: Cho CH3NH2 ln lt phn ng vi dung dch HCl, C6H5NH3Cl, NH4Cl, NaOH, NH3, HNO2, FeCl3. S ln xy ra phn ng l: A. 5 B. 4 C. 3 D. 2. Cu 21: C 6 dung dch mt nhn, khng mu: Na2CO3; Ba(HCO3)2; NaBr; BaBr2; MgCl2; CH3COOK. Nu ch dng thm H2SO4 c th nhn bit c my cht: A. 2 B. 3 C. 4 D. 6. Cu 22: ho tan ht 0,15 mol Zn v 0,03 mol Fe cn t nht V lt dung dch HNO3 0,25M. Gi s kh NO l sn phm kh duy nht. Gi tr ca V l: A. 3,08 lt B. 1,92 lt. C. 2,08 lt D. 2,92 lt



Cu 23: t chy hon ton 1 mol hp cht hu c X, thu c 4 mol CO2. Cht X tc dng c vi Na, tham gia phn ng trng bc v phn ng cng Br2 theo t l mol 1 : 1. Cng thc cu to ca X l

A. HO-CH2-CH2-CH=CH-CHO. B. HO-CH2-CH2-CH2-CHO. C. HOOC-CH=CH-COOH.

D. HO-CH2-CH=CH-CHO. Cu 24: Cho 5,6 lt hn hp 2 olefin l ng ng lin tip hp nc (c xc tc) c hn hp 2 ancol. Thu hn hp 2 ancol ny dng khan ri chia lm 2 phn bng nhau. Phn 1 phn ng ht vi Na d thu c 840 ml kh. t chy ht phn 2 ri cho ton b sn phm chy hp th vo bnh ng NaOH d th khi lng bnh NaOH tng 13,75 gam. Cng thc phn t ca 2 olefin l: A. C3H6; C4H8 B. C4H8; C5H10 C. C2H4; C3H6 D. C5H10; C6H12 Cu 25: Mt ancol khng no, mt lin kt i a chc mch h X c n nguyn t cacbon v m nhm hiroxyl trong phn t. Cho 8,8 gam X phn ng vi Na (d) thu c 2,24 lt kh (ktc). Biu thc lin h gia n v m l: A. m = 2n B. n = 2m C. 7n = 11m + 1 D. 7m = 11n + 1 Cu 26: C dy 4 cht sau: (X) C6H5OH ; (Y) C6H5-CH2OH ; (Z) C6H5-CH=CH2 ; (T) CH2=CH-CH2-OH. Khi cho 4 cht trn tc dng vi Na, dd NaOH, dd nc brom, th pht biu no sau y l ng: A. (X), (Z), (T) u tc dng vi nc brom B. (X), (Y) tc dng vi NaOH. C. (X), (Y), (Z), (T) u tc dng vi Na D. (Z), (T) tc dng c c Na v nc brom Cu 27: tan ca MgSO4 trong nc 200C l 35,5 gam v 500C l 50,4 gam. un nng 400 gam dung dch MgSO4 bo ha 200C n 500C th khi lng MgSO4 cn ha tan thm to dung dch mui bo ha 500C l A. 34,84 gam. B. 59,60 gam. C. 120,16 gam. D. 43,98 gam. Cu 28: Este A c cng thc C4H7O2Cl em thu phn trong dung dch NaOH d, to thu c 2 mui, etanal v H2O. CTCT ca X l: A. HCOOCH2CH(Cl)CH3. B. CH3COOCH2CH2Cl. C. HCOOCH2CH2CH2Cl. D. CH3COOCH(Cl)CH3. Cu 29: Cho cc phn ng sau: (1) F2 + H2O (2) Ag + O3 (3) KI + H2O + O3 (4) Cu(NO3) 2

ot

(5) in phn dung dch H2SO4 (6) in phn dung dch CuCl2 (7)

KClO3 ot

(8) in phn dung dch AgNO3

S phn ng m sn phm to ra c O2 l A. 5. B. 8. C. 6. D. 7.



Cu 30: C hai bnh kn khng gin n ng y cc hn hp kh toC nh sau: Bnh (1) cha H2 v Cl2. Bnh (2) cha CO v O2. Sau khi un nng cc hn hp phn ng xy ra, a nhit v trng thi ban u th p sut trong cc bnh thay i nh th no ? A. Bnh (1) tng, bnh (2) gim. B. Bnh (1) gim, bnh (2) tng. C. Bnh (1) khng i, bnh (2) tng. D. Bnh (1) khng i, bnh (2) gim. Cu 31: S ng phn cha ng thi nhm -COOH v nhm -NH2 ca cng thc phn t C4H9O2N l: A. 4 B. 2 C. 3 D. 5 Cu 32: ion X+ c tng s ht l 57, Y l nguyn t thuc chu k nh k cn lin tip vi X, cng nhm vi X. Vy Y l: A. ng. B. Liti. C. Natri. D. Magie. Cu 33: Glucoz phn ng c vi tt c cc cht trong dy no di y: A. dd AgNO3/NH3, Ba, CuSO4 B. AgNO3, K, Cu(OH)2, H2 C. dd AgNO3/NH3, Cu, Cu(OH)2, H2O D. dd AgNO3/NH3, K, Cu(OH)2/OH, H2 Cu 34: Chia m gam bt nhm thnh hai phn bng nhau. Ha tan ht phn 1 trong dung dch HCl va c dung dch X. Ha tan ht phn 2 bng dung dch NaOH va c dung dch Y. Trn X vi Y sau phn ng hon ton thu c bao nhiu gam cht kt ta ? A. 1,926m gam. B. 38,52m gam. C. 2,89m gam. D. 5,78m gam. Cu 35: Pht biu no sai khi ni v Benzen: A. Benzen c mi thm nh nn gi l hirocacbon thm B. 6 lin kt C-C trong vng benzen c di bng nhau C. Benzen khng lm mt mu dung dch thuc tm. D. Khi c mt bt Fe, benzen phn ng vi Brom khan chm hn toluen Cu 36: Cho cc cht CH3OH (1), CHCH (2), CH3CHO (3), HCOOH (4). Cc cht c kh nng tham gia phn ng trng gng l: A. 2, 3, 4 B. 3, 4 C. 1, 2, 3 D. 1, 2, 3, 4. Cu 37: Cho phn ng: K2Cr2O7 + K2SO3 + KHSO4 K2SO4 + Cr2(SO4)3 + H2O. Sau khi cn bng tng cc h s (nguyn, ti gin) ca phng trnh thu c l: A. 19 B. 25 C. 21 D. 41 Cu 38: X,Y l cc hp cht hu c thuc hai dy ng ng khc nhau (X hn Y mt nguyn t C). Hn hp A gm X v Y c t khi so vi H2 l 13,5. t chy hon ton 10,8 gam A ch thu c hi nc v 30,8 gam CO2. X v Y ln lt l: A. CH4 v C2H5OH B. C2H2 v HCHO C. CH4 v CH3OH D. C2H2 v HCOOH



Cu 39: T ancol etylic v cc cht v c, ta c th iu ch trc tip ra cht no sau y: (I) axit axetic. (II) axetanehit. (III) buta-1,3-ien. (IV) etyl axetat A. I, II B. I, III, IV C. I, II, IV D. I, II, III Cu 40: Hn hp kh X gm H2 v C2H4 c t khi so vi H2 l 6,2. Dn X qua Ni nung nng, thu c hn hp kh Y c t khi so vi H2 l 62/7. Hiu sut ca phn ng hiro ho l: A. 20%. B. 25%. C. 50%. D. 75%.

II. PHN RING (Th sinh ch c chn mt trong hai phn sau: A hoc B)

A. Theo chng trnh CHUN (10 cu: T cu 41 n cu 50) Cu 41: Cht X cha 1 nhm amino, 1 chc este. Hm lng nit trong X l 15,73%. X phng ha m gam cht X, lng ancol sinh ra cho i qua CuO nung nng c anehit Y. Ly 1/2 lng Y em thc hin phn ng trng bc thy sinh ra 8,1 gam kt ta Ag. Gi tr ca m l A. 5,625 B. 6,675 C. 7,725 D. 3,3375 Cu 42: Hn hp X gm CH4, C2H4, C3H4, C4H4 c t khi so vi H2 l 15. t chy hon ton 1,344 lt hn hp X (ktc) ri dn sn phm chy vo bnh ng dung dch Ba(OH)2 d thu c m gam kt ta. Gi tr ca m l A. 25,61 B. 6,50 C. 13,36 D. 11,82 Cu 43: S ng phn ca C4H10O khng tc dng c vi Na l: A. 2 B. 3 C. 4 D. 5 Cu 44: Trong hp cht sau y c my lin kt peptit?

A. 1 B. 3 C. 2 D. 4 Cu 45: Cho hn hp gm khng kh d v hi ca 16 gam metanol i qua bt Cu nung nng (xc tc), sn phm thu c c th to ra 20 ml fomalin 36% c d = 1,1 g/ml. Hiu sut ca qu trnh oxi ha metanol l A. 70,4% B. 52,8% C. 66,7% D. 65,5% Cu 46: Cho Ba(HCO3)2 ln lt vo cc dung dch sau: NaHCO3, KHSO4, HNO3, MgSO4, (NH4)2CO3, CaCl2, NaOH. Trng hp c phn ng xy ra l: A. 3 B. 6 C. 4 D. 5 Cu 47: Pht biu no sau y sai ? A. Cc kim loi Na, K, Ba c mng tinh th lp phng tm khi. B. C cht lng khi pha long (thm nc) th nng tng C. Ha tan Al2(SO4)3 khan vo nc lm dung dch nng ln do b hirat ha D. Tt c cc m chy u dp tt bng CO2

H2NCH2CONHCH(CH3)CONHCH(C6H5)CONHCH2CH2COOH



Cu 48: Khi cho 0,02 mol hoc 0,04 mol CO2 hp th ht vo dung dch Ba(OH)2 th lng kt ta thu c u nh nhau. S mol Ba(OH)2 c trong dung dch l A. 0,01 B. 0,02 C. 0,03 D. 0,04 Cu 49: Khi in phn vi in cc tr hon ton cc cht tan trong dung dch gm hn hp FeCl3, CuCl2 v HCl th qu trnh xy ra anot l : A. ch c Cl nhng electron. B. Fe3+ nhn electron trc v H+ nhn electron cui cng l Cu2+. C. Fe3+ nhn electron trc v tip theo l Cu2+. D. H2O nhng electron trc, Cl nhng electron sau. Cu 50: X, Y, Z, T l cc hp cht ca clo. Cho kh clo tc dng nc vi thu c X. Cho kh clo tc dng dung dch KOH long, ngui thu c cht Y v Z. Cho kh clo tc dng dung dch KOH c, nng c cht T v Z. Cc cht X, Y, Z, T ln lt l: A. CaCl2, KClO, KCl, KClO3. B. CaOCl2, KClO, KCl, KClO3. C. CaOCl2, KClO, KClO3, KCl. D. CaOCl2, KCl, KClO, KClO3.

B. Theo chng trnh NNG CAO (10 cu: T cu 51 n cu 60) Cu 51: Hn hp X gm C2H5OH , C2H5COOH, CH3CHO trong C2H5OH chim 50% theo s mol. t chy m gam hn hp X thu c 3,06 gam H2O v 3,136 lt CO2 (ktc). Mt khc 13,2 gam hn hp X thc hin phn ng trng bc thy c p gam Ag kt ta. Gi tr ca p l: A. 9,72. B. 2,16. C. 8,64. D. 10,8. Cu 52: t chy hon ton hn hp X gm FeS2 v Cu2S (c t l mol 1 : 1), thu c 3,36 lt SO2 (ktc), cht rn Y gm Fe2O3 v Cu2O. Hp th ht SO2 bng dung dch nc brom va thu c dung dch Z c nng long. Cho Y vo dung dch Z, sau phn ng hon ton thu c m gam cht rn. Gi tr ca m l: A. 11,2 gam. B. 3,2 gam. C. 1,6 gam. D. 14,4 gam. Cu 53: Cho cc hp cht sau: SO2, CO2, NH4Cl, PCl5, SO3, H2SO4 theo quy tc bt t s trng hp c lin kt cho nhn l: A. 3 B. 2 C. 4 D. 5 Cu 54: Xt cn bng ho hc ca mt s phn ng: (1) Fe2O3(r) + 3CO(k) 2Fe(r) + 3CO2(k) (2) CaO(r) + CO2(k) CaCO3(r) (3) N2O4(k) 2NO2(k) (4) H2(k) + I2(k) 2HI(k) (5) 2SO2(k) + O2(k) 2SO3(k) Khi tng p sut, cn bng ho hc khng b dch chuyn cc h A. 1, 2, 4, 5. B. 2, 3, 5. C. 1, 4. D. 1, 2, 4.



Cu 55: So snh tnh axit ca cc cht sau y: CH2Cl-CH2COOH (1), CH3COOH (2), HCOOH (3), CH3-CHCl-COOH (4)

A. (3) > (2) > (1 ) > (4). B. (4) > (2) > (1 ) > (3). C. (4) > (1) > (3) > (2). D. (3) > (4) > (1) > (2). Cu 56: Trong s cc pht biu sau: (1) Phenol c tnh axit mnh hn etanol v nhn benzen ht electron ca nhm -OH bng hiu ng lin hp, trong khi nhm -C2H5 li y electron vo nhm -OH.

(2) Phenol c tnh axit mnh hn etanol v c minh ho bng phn ng phenol tc dng vi dung dch NaOH, cn C2H5OH th khng. (3) Tnh axit ca phenol yu hn axit cacbonic, v sc CO2 vo dung dch C6H5ONa ta s c C6H5OH . (4) Phenol trong nc cho mi trng axit, lm qu tm ho . (5) Cc phenol u c cng thc phn t chung l CnH2n-6O (n 6) S pht biu ng l: A. 2 B. 3 C. 4 D. 5 Cu 57: Cho a mol Fe vo dung dch b mol HNO3 thu c kh NO v dung dch cha 2 mui st. Thit lp mi quan h gia a,b. A. 2 < b < 4a. B. 8a/3 < b < 4a. C. 3 < b < 4a. D. 7a/3 < b < 4a. Cu 58: Trong cc ng phn mch h ca C4H7Br c bao nhiu cht c ng phn hnh hc: A. 1 B. 2 C. 3 D. 4 Cu 59: Sc t t n d NH3 vo cc dung dch ring bit cha cc cht: Fe(NO3)3, H2SO4, AgNO3, Al(NO3)3, CuSO4, Ba(OH)2, ZnSO4. Sau khi phn ng xong, s lng kt ta thu c l:

A. 2 B. 3 C. 4 D. 5. Cu 60: Hn hp X c C2H2, C3H6, C2H6, H2 c t khi so vi H2 l 15. un nng 2,24 lt hn hp X vi Ni mt thi gian thu hn hp Y. Cho hn hp Y qua bnh c dung dch Br2 d th cn 0,56 lt hn hp Z c t khi so vi H2 l 20 v khi lng bnh Br2 tng m gam. Gi tr ca m l:

A. 1 gam B. 1,5 gam C. 2 gam D. 3 gam





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 = 86; Ag = 108; Ba = 137

I. PHN CHUNG CHO TT C TH SINH (40 cu, t cu 1 n cu 40)

Cu 1: Cho 2,46 gam hn hp gm HCOOH, CH3COOH, C6H5OH, H2NCH2COOH tc dng va vi 40 ml dung dch NaOH 1M. Tng khi lng mui khan thu c sau khi phn ng l A. 6,45 gam B. 8,42 gam C. 3,52 gam D. 3,34 gam Cu 2: Cho cc cp oxi ha kh sau: Fe2+/Fe; Cu2+/Cu; Fe3+/Fe2+; Ag+/Ag; Br2/2Br Theo chiu t tri qua phi tnh oxi ha tng dn; tnh kh gim dn. Phn ng no sau y khng xy ra: A. Fe + 2AgNO3 Fe(NO3)2 + 2Ag B. Cu + 2FeCl3 2FeCl3 + CuCl2 C. Fe(NO3)2 + AgNO3 Fe(NO3)3 + Ag D. 2Ag + CuSO4 Ag2SO4 + Cu Cu 3: Cho st d vo dung dch HNO3 long thu c A. dung dch mui st (II) v NO B. dung dch mui st (III) v NO C. dung dch mui st (II) v NO2 D. dung dch mui st (III) v NO2 Cu 4: Trng hp no sau y dung dch chuyn t mu da cam sang mu vng ? A. cho dung dch H2SO4 long vo dung dch K2Cr2O7. B. cho dung dch KOH vo dung dch K2CrO4. C. cho dung dch H2SO4 long vo dung dch K2CrO4. D. cho dung dch KOH vo dung dch K2Cr2O7.



Cu 5: Nhit phn mui KNO3 th thu c kh: A. NO2 B. O2 C. Hn hp NO2 v O2 D. Hn hp NO v O2 Cu 6: Hn hp kh X gm H2 v C2H4 c t khi so vi He l 3,75. Dn X qua Ni nung nng, thu c hn hp kh Y c t khi so vi He l 5,0. Hiu sut ca phn ng hiro ho l A. 40% B. 50% C. 25% D. 20% Cu 7: Hn hp cha 3 cht cng s mol ancol X, anehit Y, axit cacboxylic Z c cng s nguyn t H trong phn t, thuc cc dy ng ng no n chc mch h. t hon ton hn

hp thu c 2 2CO H O

n : n 11:12= . Cng thc phn t ca X, Y, Z ln lt l:

A. C4H10O, C5H10O, C5H10O2 B. C2H6O, C3H6O, C3H6O2 C. C3H8O, C4H8O, C4H8O2 D. CH4O, C2H4O, C2H4O2 Cu 8: Dy gm cc cht no sau y u c tnh lng tnh ? A. Al, NaHCO3, Na[Al(OH)4] (hay NaAlO2), ZnO, Be(OH)2 B. ZnCl2, AlCl3, Na[Al(OH)4] (hay NaAlO2), NaHCO3, H2NCH2COOH C. AlCl3, H2O, NaHCO3, Zn(OH)2, ZnO D. H2O, Zn(OH)2, CH3COONH4, H2NCH2COOH, NaHCO3 Cu 9: t chy 1,6 gam mt este E n chc c 3,52 gam CO2 v 1,152 gam H2O. Nu cho 10 gam E tc dng vi 150ml dung dch NaOH 1M, c cn dung dch sau phn ng thu c 16 gam cht rn khan. Cng thc ca axit to nn este trn c th l A. HOOC(CH2)3CH2OH B. HOOC-CH2-CH(OH)-CH3 C. CH2=C(CH3)-COOH D. CH2=CH-COOH Cu 10: Cho dung dch Na2CO3 vo dung dch AlCl3, un nng nh, thy c A. kt ta trng B. kh bay ra C. khng c hin tng g D. kt ta trng v kh bay ra. Cu 11: Dy gm cc cht c th iu ch trc tip (bng mt phn ng) to ra axit axetic l: A. C2H4(OH)2, CH3OH, CH3CHO. B. CH3CHO, C2H5OH, C2H5COOCH3. C. CH3CHO, C6H12O6 (glucoz), CH3OH. D. CH3OH, C2H5OH, CH3CHO. Cu 12: Cho 3,2 gam Cu tc dng vi 100ml dung dch hn hp HNO3 0,8M v H2SO4 0,2M, sn phm kh duy nht l kh NO. S gam mui khan thu c l A. 8,84 B. 7,90 C. 5,64 D. 10,08



Cu 13: Trong mt phn t axit -aminoenantoic c s nguyn t Cacbon l A. 3. B. 6. C. 7. D. 2. Cu 14: Dy cht no sau y cha cc cht u phn ng c vi axit axetic ? A. Cl2, CaO, MgCO3, Na B. Cu, Zn(OH)2, Na2CO3 C. CaCO3, Mg, CO, NaOH D. NaOH, C2H5OH, HCl, Na Cu 15: Ho tan 5,4 gam bt Al vo 150 ml dung dch X cha Fe(NO3)3 1M v Cu(NO3)2 1M. Kt thc phn ng thu c m gam rn. Gi tr ca m l A. 10,95 B. 13,20 C. 15,20 D. 13,80 Cu 16: Thy phn 34,2 gam mantoz vi hiu sut 50%. Sau tin hnh phn ng trng bc vi dung dch thu c. Khi lng Ag to thnh ti a l A. 10,8 gam B. 43,2 gam C. 32,4 gam D. 21,6 gam Cu 17: Cho dy cc cht: C2H2, C2H4, CH2=CH-COOH, C6H5NH2 (anilin), C6H5OH (phenol), C6H6 (benzen), CH4, CH3CHO. S cht trong dy phn ng c vi nc brom l A. 8 B. 6 C. 7 D. 5 Cu 18: C 4 dung dch trong sut, mi dung dch ch cha mt cation v mt loi anion. Cc

loi ion trong c 4 dung dch gm: Ba2+, Mg2+, Pb2+, Na+, 24SO

, Cl, 23CO

, 3NO

. Chc chn

phi c dung dch no di y ? A. NaNO3. B. Mg(NO3)2. C. Ba(NO3)2. D. Pb(NO3)2 Cu 19: t chy mt axit n chc mch h X thu c CO2 v H2O theo t l khi lng l 88 : 27. Ly mui natri ca X nung vi vi ti xt th c 1 hirocacbon th kh. CTCT ca X l: A. CH3COOH B. C2H5COOH. C. CH2=CHCOOH D. CH2=CHCH2COOH Cu 20: Hy cho bit, phn ng no sau y HCl ng vai tr l cht oxi ha ? A. Fe + KNO3 + 4HCl FeCl3 + KCl + NO + 2H2O. B. MnO2 + 4HCl MnCl2 + Cl2 + 2H2O C. Fe + 2HCl FeCl2 + H2. D. NaOH + HCl NaCl + H2O Cu 21: t chy este X to ra CO2 v H2O vi s mol nh nhau. Vy X l: A. este no n chc B. este no, a chc C. este no, n chc mch h D. este c mt ni i, n chc



Cu 22: Cho hn hp kim loi Mg, Zn, Fe vo dung dch cha AgNO3 v Cu(NO3)2. Sau khi phn ng xy ra hon ton thu c dung dch X gm 3 mui v cht rn Y gm ba kim loi. Ba mui trong X l

A. Mg(NO3)2, Zn(NO3)2, Fe(NO3)3 B. Mg(NO3)2, Zn(NO3)2, Fe(NO3)2 C. Mg(NO3)2, Fe(NO3)3, AgNO3 D. Mg(NO3)2, Zn(NO3)2, Cu(NO3)2 Cu 23: Sc V lt CO2 (ktc) vo 200 ml dung dch X gm Ba(OH)2 1M v NaOH 1M. Sau phn ng thu c 19,7 gam kt ta, gi tr ca V l A. 2,24 hoc 11,2. B. 5,6 hoc 1,2. C. 2,24 hoc 4,48. D. 6,72 hoc 4,48. Cu 24: Hp cht vi hiro ca nguyn t X (nhm A) c cng thc HX, oxit cao nht ca X cha 38,8% X v khi lng. X l A. Iot. B. Brom. C. Clo. D. Flo. Cu 25: Fructoz khng phn ng vi cht no sau y ? A. CH3COOH/H2SO4 c B. dung dch AgNO3/NH3 C. H2 (Ni/to) D. Cu(OH)2 Cu 26: Cho mt lung kh CO i qua ng s ng m gam Fe2O3 nung nng. Sau mt thi gian thu c 10,44 gam cht rn X gm Fe, FeO, Fe2O3 v Fe3O4. Ha tan ht X trong dung dch HNO3 c, nng thu c 4,368 lt NO2 (sn phm kh duy nht iu kin chun). Gi tr ca m l A. 24,0. B. 10,8. C. 12,0. D. 16,0. Cu 27: Cho cc cht sau: axetilen, axit fomic, fomanehit, phenyl fomat, anehit axetic, metyl axetat, glucoz, mantoz, natri fomat, axeton. S cht c th tham gia phn ng trng gng l A. 5 B. 6 C. 7 D. 8 Cu 28: Bit Cu c s hiu nguyn t l 29. Cu hnh electron ca ion Cu+ l A. [Ar]3d9 B. [Ar]3d94s1 C. [Ar]3d10 D. [Ar]3d104s1 Cu 29: Cho 29,8 gam hn hp 2 amin n chc k tip tc dng ht vi dung dch HCl, lm kh dung dch thu c 51,7 gam mui khan. Cng thc phn t 2 amin l A. CH5N v C2H7N B. C2H7N v C3H9N C. C3H9N v C4H11N D. C3H7N v C4H9N Cu 30: Mt axit cacboxylic no mch h c cng thc thc nghim dng (C2H4O)n. Gi tr ca n l A. 1 B. 2 C. 3 D. 4



Cu 31: Cho phng trnh ho hc: Al + HNO3 Al(NO3)3 + NO + N2O + H2O

(Bit t l th tch N2O : NO = 1 : 3). Sau khi cn bng phng trnh ho hc trn vi h s cc cht l nhng s nguyn, ti gin th h s ca HNO3 l A. 64 B. 66 C. 60 D. 62 Cu 32: C 45,75 gam cao su buna-S phn ng va ht vi 20 gam brom trong CCl4. T l mt xch butaien v stiren trong cao su buna-S l A. 1 : 3 B. 1 : 2 C. 2 : 3 D. 3 : 5

Cu 33: Ion 5224 Cr3+ c bao nhiu electron ?

A. 21 B. 24 C. 27 D. 52 Cu 34: nhn bit ba l mt nhn: phenol, stiren, ancol benzylic, ngi ta dng mt thuc th duy nht l A. Na B. Dung dch NaOH C. Nc brom D. Ca(OH)2 Cu 35: Cho bit ion no sau y l axit theo Bronsted

A. HS B. 4NH+ C. Na+ D. 23CO

Cu 36: Ha tan hon ton hn hp gm Fe v Fe3O4 bng dung dch HNO3 2,24 lt kh NO (ktc). Nu thay dung dch HNO3 bng dung dch H2SO4 c nng th thu c kh g, th tch l bao nhiu (ktc) ? A. H2; 3,36 lt B. SO2; 2,24 lt C. SO2; 3,36 lt D. H2; 4,48 lt Cu 37: Cho cc kim loi: Cr, W, Fe, Cu, Cs. Sp xp theo chiu tng dn cng t tri sang phi l

A. Cu < Cs < Fe < Cr < W B. Cs < Cu < Fe < W < Cr C. Cu < Cs < Fe < W < Cr D. Cs < Cu < Fe < Cr < W Cu 38: t chy hon ton 0,1 mol axit hu c X thu c 3,36 lt CO2 (o 0oC, 2 atm) v 5,4 gam H2O. Cng thc phn t ca X l A. C3H4O2. B. C3H6O2. C. C2H2O4. D. C2H4O2. Cu 39: Trong phng th nghim ngi ta iu ch H2S bng cch cho FeS tc dng vi: A. dung dch HCl B. dd H2SO4 c nng. C. dung dch HNO3 D. nc ct



Cu 40: Thy phn cc dn xut halogen no sau y u thu c ancol ? A. CH3CH2Cl, CH3CH=CHCl B. CH3CH=CHCl, C6H5CH2Cl C. C6H5CH2Cl, CH3CH2Cl D. C6H5Cl, CH3CH2Cl

II. PHN RING [10 cu] Th sinh ch c lm mt trong hai phn (phn A hoc B)

A. Theo chng trnh CHUN (10 cu, t cu 41 n cu 50)

Cu 41: Cho 13,8 gam axit X tc dng vi 16,8 gam KOH, c cn dung dch sau phn ng thu c 26,46 gam cht rn. Cng thc cu to thu gn ca X l A. CH3COOH B. C3H6COOH C. C2H5COOH D. HCOOH Cu 42: loi tp cht HCl c ln trong kh Cl2 ngi ta dng A. dd NaOH. B. dd H2SO4. C. H2O. D. dd Na2CO3. Cu 43: Cn ti thiu bao nhiu gam NaOH (m1) v Cl2 (m2) phn ng hon ton vi 0,01 mol CrCl3. Gi tr ca m1 v m2 ln lt l A. 3,2 v 1,065 B. 3,2 v 0,5325 C. 6,4 v 0,5325 D. 6,4 v 1,065 Cu 44: Mt loi qung hematit c cha 60% st (III) oxit. Khi lng st ti a c th iu ch c t 1 tn qung ny l

A. 4,60 tn. B. 0,42 tn. C. 0,70 tn. D. 1,16 tn. Cu 45: Cho Na vo cc dung dch BaCl2, CuSO4, NaHSO4, NH3, NaNO3. Quan st thy c chung mt hin tng l

A. c kh bay ra. B. c kt ta xanh. C. c kt ta trng. D. khng phn ng. Cu 46: Ho tan 19,2 gam Cu vo 500 ml dung dch NaNO3 1M, sau thm vo 500ml dung dch HCl 2M. Kt thc phn ng thu c dung dch X v kh NO duy nht, phi thm bao nhiu ml dung dch NaOH 1M vo X kt ta ht ion Cu2+

A. 120 B. 400 C. 600 D. 800 Cu 47: Anehit no X c cng thc (C3H5O)n. Gi tr n tha mn l: A. 1 B. 2 C. 3 D. 4 Cu 48: Nguyn nhn ca s suy gim tng ozon ch yu l do A. kh CO2. B. ma axit. C. clo v cc hp cht ca clo. D. qu trnh sn xut quang thp.



Cu 49: t chy hon ton 1,0 mol ancol no X cn 3,5 mol O2. Cng thc phn t ca X l A. C3H6O2 B. C3H8O3 C. C2H6O D. C2H6O2 Cu 50: Thy phn 1 mol este X cn 2 mol KOH. Hn hp sn phm thu c gm glixerol, axit axetic v axit propionic. C bao nhiu CTCT tha mn vi X ? A. 3. B. 4. C. 6. D. 12.

B. Theo chng trnh NNG CAO (10 cu, t cu 51 n cu 60)

Cu 51: Cho 31,2 gam hn hp gm bt Al v Al2O3 tc dng vi mt lng va dung dch NaOH thu c 0,6 mol H2. S mol NaOH cn dng l A. 0,6 mol. B. 1,0 mol. C. 0,8 mol. D. 0,4 mol. Cu 52: Cho vo ng nghim 1 t mt st ri rt vo mt t dung dch HNO3 long. Ta nhn thy c hin tng sau: A. St tan, to dung dch khng mu, xut hin kh khng mu ha nu trong khng kh. B. St tan, to dung dch khng mu, xut hin kh nu . C. St tan, to dung dch mu vng, xut hin kh nu . D. St tan, to dung dch mu vng, xut hin kh khng mu ha nu trong khng kh. Cu 53: Hirat ho 3,36 lt C2H2 (ktc) thu c hn hp X (hiu sut phn ng 60%). Cho hn hp sn phm X tc dng vi dung dch AgNO3/NH3 d thu c m gam cht rn. Gi tr ca m l A. 33,84 B. 48,24 C. 14,40 D. 19,44 Cu 54: Cn a mol K2Cr2O7 v b mol HCl iu ch c 3,36 lt Cl2 iu kin chun. Gi tr a v b ln lt l: A. 0,05 v 0,7 B. 0,05 v 0,35 C. 0,1 v 0,7 D. 0,1 v 0,35 Cu 55 Mui no to kt ta trng trong dung dch NaOH d ? A. ZnCl2 B. FeCl3 C. AlCl3 D. MgCl2 Cu 56: Mt oxit kim loi c cng thc MxOy, trong M chim 72,41% khi lng. Kh hon ton oxit ny bng kh CO thu c 16,8 gam kim loi M. Ha tan hon ton lng M bng HNO3 c nng thu c mui ca M ha tr 3 v 0,9 mol kh NO2. Cng thc oxit kim loi trn l: A. Al2O3 B. Fe2O3. C. Fe3O4. D. FeO.



Cu 57: Cho 0,1 mol hn hp X gm hai anehit no, n chc, mch h, k tip nhau trong dy ng ng tc dng vi lng d dung dch AgNO3 trong NH3, un nng thu c 32,4 gam Ag. Hai anehit trong X l

A. CH3CHO v C3H5CHO. B. CH3CHO v C2H5CHO. C. HCHO v C2H5CHO. D. HCHO v CH3CHO. Cu 58: Mt hn hp gm 0,1 mol etylenglicol v 0,2 mol ancol X. t chy hon ton hn hp ny cn 0,95 mol O2 v thu c 0,8 mol CO2 v 1,1 mol H2O. Cng thc ru X l: A. C2H5OH B. C3H5OH C. C3H5(OH)3 D. C3H6(OH)2 Cu 59: Dy gm cc kim loi u tc dng c vi dung dch FeCl3 l: A. Au, Cu, Al, Mg, Zn B. Fe, Zn, Cu, Al, Mg C. Cu, Ag, Au, Mg, Fe D. Fe, Mg, Cu, Ag, Al Cu 60: t chy hon ton 1,0 mol ancol no X cn 2,5 mol O2. Cng thc phn t ca X l A. C2H6O2 B. C3H8O3 C. C3H6O2 D. C2H6O.





Cho bit khi lng nguyn t (tnh theo vC) ca cc nguyn t: H = 1; C = 12; N = 14;

O = 16; F = 19; Cl = 35,5; I = 127; Si = 28; P = 31; S = 32; Na = 23; Mg = 24; Al = 27; K = 39;

Ca = 40; Cr = 52; Fe = 56; Ni = 58; Cu = 64; Zn = 65; Ag = 108; Ba = 137, Sr = 88

Cu 1: Ho tan hon ton 1,43 gam hn hp Al v Ni bng dung dch HCl, thu c 0,784 lt kh H2 thot ra ( ktc). Thnh phn phn trm theo khi lng ca mt kim loi trong hn hp l A. 18,88%. B. 57,94%. C. 78,46%. D. 86,81%. Cu 2: Cho cc dung dch c cng nng mol/lt. Dy cc dung dch no sau y c gi tr pH tng dn? A. H2SO4; HCl; NH4Cl; KNO3; KOH; Ba(OH)2. B. HCl; H2SO4; NH4Cl; KNO3; KOH; Ba(OH)2. C. H2SO4; HCl; KNO3; NH4Cl; KOH; Ba(OH)2. D. HCl; H2SO4; NH4Cl; KNO3; Ba(OH)2; KOH. Cu 3: Ngm mt l Mg kim loi trong dung dch Cu(NO3)2, sau mt thi gian ngi ta nhn thy khi lng ca l kim loi tng 1 gam so vi ban u. Khi lng ca Cu kim loi bm ln b mt ca l kim loi l (gi thit rng ton b Cu b y ra khi mui bm ht vo l Mg kim loi) A. 1,60 gam. B. 1,28 gam. C. 1,20 gam. D. 2,40 gam. Cu 4: Cho cc dung dch sau tc dng vi nhau tng i mt nhit thng: BaCl2; NaHCO3; Na2CO3; NaHSO4. S phn ng xy ra l A. 5. B. 4. C. 2. D. 3.



Cu 5: Tinh bt, xenluloz, saccaroz v mantoz u c kh nng tham gia phn ng A. trng gng. B. ho tan Cu(OH)2. C. trng ngng. D. thu phn. Cu 6: Cation M2+ c cu hnh electron 1s22s22p63s23p63d5. M thuc A. chu k 4 nhm VB. B. chu k 4 nhm VIIB. C. chu k 4 nhm IIA. D. chu k 3 nhm VB. Cu 7: Ly 50ml dung dch HCl a mol/lt pha long bng nc thnh 1 lt dung dch c pH = 1. Gi tr ca a l A. 3M. B. 1M. C. 4M. D. 2M. Cu 8: Ln lt cho qu tm vo cc dung dch sau: axit axetic (1); glyxin (2); axit aipic (3); axit -amino propionic (4); phenol (5). Dy dung dch lm qu tm chuyn sang mu l A. 1; 2; 3; 4. B. 1; 3; 4; 5. C. 1; 3. D. 1; 3; 4. Cu 9: Mt axit mch thng c cng thc n gin nht l C3H5O2. Cng thc cu to ca axit l A. CH2=CHCOOH. B. CH2(COOH)2. C. CH3CH2COOH. D. (CH2)4(COOH)2. Cu 10: t chy hon ton a gam hirocacbon X thu c a gam H2O. Trong phn t X c vng benzen. X khng tc dng vi brom khi c mt bt Fe, cn khi tc dng vi brom un nng to thnh dn xut cha 1 nguyn t brom duy nht. T khi hi ca X so vi khng kh c gi tr trong khong t 5 6. X l A. Hexan. B. Hexametylbenzen. C. Toluen. D. Hex-2-en.

Cu 11: Cho phng trnh ion: FeS + H+ + 24SO Fe3+ + SO2 + H2O

Tng h s nguyn b nht ca phng trnh ion ny l A. 30. B. 36. C. 50. D. 42. Cu 12: Theo nh ngha axit-baz ca Bronstet, dy no sau y gm cc cht v ion mang tnh cht lng tnh ?

A. 23CO ; CH3COO. B. ZnO, 3HCO

, H2O.

C. 4NH+ ; 3HCO ; CH3COO. D. ZnO; Al2O3, 4HSO .

Cu 13: Cho cc cp kim loi nguyn cht tip xc trc tip vi nhau: Fe v Pb; Fe v Zn; Fe v Sn; Fe v Ni. Khi nhng cc cp kim loi trn vo dung dch axit, s cp kim loi trong Fe b ph hu trc l A. 4. B. 3. C. 2. D. 1.



Cu 14: Nhm cc vt liu c ch to t polime trng ngng l A. nilon-6,6; t lapsan; nilon-6. B. Cao su; nilon-6,6; t nitron. C. t axetat; nilon-6,6. D. nilon-6,6; t lapsan; thu tinh plexiglas. Cu 15: Hai cht hu c X, Y cha cc nguyn t C, H, O v c khi lng phn t u bng 74. Bit X tc dng c vi Na, c X, Y u tc dng vi dung dch NaOH v dung dch AgNO3 trong NH3. Vy X, Y c th l A. OHC-COOH; HCOOC2H5. B. OHC-COOH; C2H5COOH.

C. C4H9OH; CH3COOCH3. D. CH3COOCH3; HOC2H4CHO.

Cu 16: Cho s chuyn ho sau: 2 5 2HCOONa A C H OH B D (COOH) Cc cht A, B, D c th l

A. H2; C4H6; C2H4(OH)2. B. H2; C2H4; C2H4(OH)2. C. CH4 ; C2H2 ; (CHO)2. D. C2H6; C2H4(OH)2. Cu 17: Nhit phn hon ton 2,45 gam mt mui v c X thu c 672 cm3 O2 ( ktc). X l A. KClO3. B. KClO. C. KClO4. D. KClO2. Cu 18: Cho cc cht ring bit: Glucoz; tinh bt; glixerol; phenol; anehit axetic; benzen. Thuc th dng nhn bit l A. Na; qu tm; Cu(OH)2. B. Na; qu tm; Ca(OH)2. C. Na; HCl; Cu(OH)2. D. I2; qu tm; Ca(OH)2. Cu 19: Tin hnh cc th nghim sau: (1) Sc kh CO2 vo nc vi trong. (2) Sc SO2 v dung dch nc brom. (3) Sc C2H4 vo dung dch KMnO4. (4) Sc SO2 vo dung dch Na2CO3. S phn ng oxi ho-kh xy ra l A. 2. B. 4. C. 3. D. 1. Cu 20: trung ha 10 gam mt cht bo c ch s axit l 5,6 th khi lng NaOH cn dng l bao nhiu ? A. 0,04 g. B. 0,06 g. C. 0,05 g. D. 0,08 g. Cu 21: Cho 24,8 gam hn hp gm kim loi kim th v oxit ca n tc dng vi HCl d ta thu c 55,5 gam mui khan v 4,48 lt kh H2 ( ktc). Kim loi M l A. Sr. B. Ba. C. Ca. D. Mg.



Cu 22: Sau mt thi gian in phn 100 ml dung dch CuSO4 vi in cc tr, khi lng

dung dch gim 4 gam. lm kt ta ht ion Cu2+ cn li trong dung dch sau khi in phn

cn dng 50 ml dung dch H2S 0,5M. Nng mol ca dung dch CuSO4 trc lc in phn l

A. 0,735M. B. 0,375M. C. 0,420M. D. 0,750M.

Cu 23: Trong 1 bnh kn cha hn hp gm hirocacbon X mch h v kh H2 c Ni xc tc.

Nung nng bnh mt thi gian thu c mt kh B duy nht. cng nhit , p sut trong bnh

trc khi nung nng gp 3 ln p sut sau khi nung nng. t chy mt lng B thu c 4,4

gam CO2 v 2,7 gam H2O. Cng thc phn t ca X l

A. C3H4. B. C4H6. C. C2H2. D. C2H6.

Cu 24: Hy sp xp cc cht sau y theo trnh t lc baz tng dn t tri sang phi: amoniac

(1); anilin (2); p-nitroanilin (3); metylamin (4); imetylamin (5). A. 3; 2; 1; 4; 5. B. 3; 1; 2; 4; 5. C. 2; 3; 1; 4; 5. D. 3; 2; 1; 5; 4.

Cu 25: Mt hn hp gm 2 este u n chc. Ly hai este ny phn ng vi dung dch

NaOH un nng th thu c mt anehit no mch h v 2 mui hu c, trong c 1 mui c

kh nng tham gia phn ng trng gng. Cng thc cu to ca 2 este c th l

A. HCOOC2H5; CH3COOC6H5. B. HCOOCH=CHCH3; HCOOC6H5.

C. CH3COOCH=CH2; CH3COOC6H5. D. HCOOC2H5; CH3COOC2H5.

Cu 26: Ho tan 2,64 gam hn hp Fe v Mg bng dung dch HNO3 long, d, thu c sn

phm kh l 0,896 lt ( ktc) hn hp kh gm NO v N2, c t khi so vi H2 bng 14,75. Thnh phn % theo khi lng ca st trong hn hp ban u l

A. 61,80%. B. 61,82%. C. 38,18%. D. 38,20%.

Cu 27: Cho 5,668 gam cao su Buna-S phn ng va vi 3,462 gam brm trong CCl4. T l

s mt xch ca Stiren v Buta-1,3-ien l

A. 4:4. B. 1:4. C. 1:2. D. 2:1.

Cu 28: Mun sn xut 59,4 kg xenluloz trinitrat vi hiu sut phn ng l 90% th th tch

dung dch HNO3 66,67% (D = 1,52 g/ml) cn dng l A. 42,581 lt. B. 41,445 lt. C. 39,582 lt. D. 27,230 lt.



Cu 29: Ngi ta c th iu ch cao su Buna t g theo s sau

Xenluloz %35 glucoz %80 C2H5OH %60 Buta-1,3-ien TH Cao su Buna

Khi lng xenluloz cn sn xut 1 tn cao su Buna l

A. 5,806 tn. B. 25,625 tn. C. 37,875 tn. D. 17,857 tn. Cu 30: Cho cc phn ng:

AgNO3 + Fe(NO3)2 Ag + Fe(NO3)3 v Fe + HCl FeCl2 + H2 Dy cc ion c sp xp theo chiu tng dn tnh oxi ho l A. Fe2+; Fe3+; H+; Ag+. B. Fe2+; H+; Fe3+; Ag+. C. Ag+; Fe3+; H+; Fe2+. D. Fe2+; H+; Ag+; Fe3+. Cu 31: Vi cng thc cu to CH3CHCH=CH2

C2H5 c tn gi l

A. 2-etylbut-3-en. B. 3-metylpent-1-en. C. 3-etylbut-1-en. D. 3-metylpent-4-en. Cu 32: Ho tan ht 9,6 gam kim loi M trong dung dch H2SO4 c, nng, thu c SO2 l sn phm kh duy nht. Cho ton b lng SO2 ny hp th vo 0,5 lt dung dch NaOH 0,6M, sau phn ng em c cn dung dch c 18,9 gam cht rn. Kim loi M l A. Ca. B. Mg. C. Fe. D. Cu. Cu 33: Ho tan hon ton 8,9 gam hn hp Zn, Mg bng dung dch H2SO4 c thu c 1,12 lt SO2 ( ktc), 1,6 gam S (khng cn sn phm kh no khc) v dung dch X. Khi lng mui khan trong dung dch X l A. 28,1 gam. B. 18,1 gam. C. 30,4 gam. D. 24,8 gam. Cu 34: un nng ancol A vi hn hp NaBr v H2SO4 c thu c cht hu c B; 12,3 gam hi cht B chim mt th tch bng th tch ca 2,8 gam N2 cng nhit 560oC; p sut 1 atm. Cng thc cu to ca A l

A. CH3OH. B. C2H5OH. C. C3H5OH. D. C3H7OH. Cu 35: Cho amin C4H11N, s ng phn cu to l A. 6. B. 7. C. 9. D. 8. Cu 36: Trong cu mui ca pin in ho khi hot ng, xy ra s di chuyn ca cc A. nguyn t kim loi. B. ion. C. electron. D. phn t nc.



Cu 37: Cho kh CO d i vo ng s nung nng ng hn hp X gm Al2O3, MgO, Fe3O4, CuO thu c cht rn Y. Cho Y vo dung dch NaOH (d), khuy k, thy cn li phn khng tan Z. Gi s cc phn ng xy ra hon ton. Phn khng tan Z gm A. MgO, Fe, Cu. B. Mg, Fe, Cu, Al. C. Mg, Fe, Cu. D. MgO, Fe3O4, Cu. Cu 38: Cho sut in ng chun ca cc pin in ho: Eo(Ni-X) = 0,12V; Eo(Y-Ni) = 0,02V; Eo(Ni-Z) = 0,60V (X, Y, Z l ba kim loi). Dy cc kim loi xp theo chiu gim dn tnh kh t tri sang phi l A. Y, Ni, Z, X. B. Z, Y, Ni, X. C. X, Z, Ni, Y. D. Y, Ni, X, Z. Cu 39: Cho V lt Cl2 tc dng vi dung dch NaOH va iu kin thng, c cn dung dch thu c m1 gam mui khan. Cng ly V lt Cl2 cho tc dng vi dung dch NaOH va , un nng 80oC, c cn dung dch thu c m2 gam mui. Th tch kh Cl2 o cng iu kin. T l m1:m2 l A. 1:2. B. 1:1,5. C. 1:1. D. 2:1. Cu 40: phn bit cc dung dch ring bit: h tinh bt; saccaroz; glucoz; ngi ta c th dng mt trong nhng ho cht no sau y?

A. Vi sa. B. AgNO3/NH3. C. Cu(OH)2/OH. D. Iot. Cu 41: Hai hirocacbon A v B u c cng thc phn t C6H6 v A c mch cacbon khng nhnh. A lm mt mu dung dch nc brom v dung dch thuc tm iu kin thng. B khng tc dng vi 2 dung dch trn iu kin thng nhng tc dng c vi H2 d to ra D c cng thc phn t C6H12. A tc dng vi dung dch AgNO3 trong NH3 d to ra C6H4Ag2. A v B l A. Hex-1,5-iin v benzen. B. Hex-1,4-iin v benzen. C. Hex-1,4-iin v toluen. D. Hex-1,5-iin v toluen. Cu 42: Cho 0,01 mol mt este ca axit hu c phn ng va vi 100ml dung dch NaOH 0,2M, sn phm to thnh ch gm 1 ancol v 1 mui c s mol bng nhau. Mt khc khi x phng ho hon ton 1,29 gam este bng lng va 60 ml dung dch KOH 0,25M. Sau khi kt thc phn ng, em c cn dung dch thu c 1,665 gam mui khan. Este c cng thc phn t l

A. C3H7COOC2H5 B. C4H8COOCH2

COOCH2 C. C3H6

COOCH2

COOCH2 D. C2H4

COOCH2

COOCH2



Cu 43: Th mu nh kim loi bari vo dung dch mui (NH4)2SO4. Hin tng quan st c l

A. Kim loi Ba tan, c kt ta mu vng lng di y ng nghim.

B. Kim loi Ba tan, xut hin kt ta trng keo.

C. Kim loi Ba tan, c hn hp kh bay ra mi khai v xut hin kt ta mu trng.

D. Kim loi Ba tan ht, dung dch tr nn trong sut.

Cu 44: Hp cht X cha cc nguyn t C, H, O, N v c phn t khi l 89 vC. Khi t chy

1 mol X thu c hi nc, 3 mol CO2 v 0,5 mol N2. Bit X l hp cht lng tnh v tc dng

vi nc brom. Cng thc phn t X l

A. CH3COONH3CH3. B. CH2=CH(NH2)COOH. C. CH2=CHCOONH4. D. H2NCH2CH2COOH.

Cu 45: Polistiren khng tham gia phn ng no trong cc phn ng sau?

A. Tc dng vi Cl2/as. B. epolime ho.

C. Tc dng vi dung dch NaOH. D. Tc dng vi Cl2/Fe.

Cu 46: Thm 6,0 gam P2O5 vo 25 ml dung dch H3PO4 6,0% (d = 1,03 g/ml). Nng % ca H3PO4 trong dung dch thu c l

A. 30,95%. B. 29,75%. C. 26,08%. D. 35,25%.

Cu 47: Trong cc cht sau, cht no gm 3 ion u c cu hnh electron ging vi kh him

10Ne ?

A. Na2S. B. MgCl2. C. NaF. D. Na2O.

Cu 48: Nhn xt no sau y KHNG ng ? A. Bc ca amin l bc cacbon ca nguyn t cacbon lin kt vi N trong nhm amin.

B. ng vi cng thc phn t C3H5Br c 4 ng phn cu to.

C. Anlyl clorua d tham gia phn ng th hn phenyl bromua.

D. Vinyl clorua c th c iu ch t 1,2-icloetan.



Cu 49: Cho 4,48 lt CO2 ( ktc) hp th ht vo 100ml dung dch hn hp Ba(OH)2 1,5M. Khi lng kt ta thu c l

A. 9,85 gam. B. 22,95 gam. C. 19,70 gam. D. 15,20 gam.

Cu 50: Ancol v amin no sau y cng bc ?

A. (CH3)2CHOH v (CH3)2CHNH2. B. (C6H5)2NH v C6H5CH2OH. C. (CH3)3COH v (CH3)3CNH2. D. C6H5NHCH3 v C6H5CH(OH)CH3.





Cho bit s khi ca cc nguyn t (theo vC): H = 1; C = 12; N = 14; O = 16; F = 19; Na = 23;

Mg = 24; Al = 27; Si = 28; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Cr = 52; Fe = 56; Ni = 58;

Cu = 64; Zn = 65; Ag = 108; Ba = 137

Cu 1: Axit flohiric yu hn axt clohiric v

A. HF nh hn HCl. B. HF phn cc mnh hn HCl.

C. flo m in hn clo. D. lin kt hiro ca HF bn hn ca HCl.

Cu 2: C bao nhiu ru (ancol) bc 2, no, n chc, mch h l ng phn cu to ca nhau m phn t ca chng c phn trm khi lng cacbon bng 68,18%?

A. 2. B. 5. C. 3. D. 4

Cu 3: Nu NaCl kt tinh theo kiu mng lp phng tm khi, th s ion clo tip gip vi mi

ion natri l

A. 4. B. 12. C. 8. D. 6.

Cu 4: trung ha lng axit t do c trong 14 gam mt mu cht bo cn 15 ml dung dch

KOH 0,1M. Ch s axit ca mu cht bo trn l

A. 6,0. B. 7,2. C. 4,8. D. 5,5.

Cu 5: Ln men hon ton m gam glucoz thnh ancol etylic. Ton b kh CO2 sinh ra trong

qu trnh ny c hp th ht vo dung dch Ca(OH)2 (d) to ra 40 gam kt ta. Nu hiu sut ca qu trnh ln men l 75% th gi tr ca m l

A. 30. B. 48. C. 58. D. 60.



Cu 6: Cho 0,1 mol hn hp X gm hai anehit no, n chc, mch h, k tip nhau trong dy ng ng tc dng vi lng d dung dch AgNO3 trong NH3, un nng thu c 32,4 gam Ag. Hai anehit trong X l

A. CH3CHO v C2H5CHO. B. CH3CHO v C3H5CHO. C. HCHO v CH3CHO. D. HCHO v C2H5CHO. Cu 7: Poli(vinyl clorua) (PVC) c iu ch t kh thin nhin (cha 95% th tch kh metan) theo s chuyn ha v hiu sut ca mi giai on nh sau:

Metan axetilen vinyl clorua PVCh = 15% h =95% h = 90%

Mun tng hp 1 tn PVC th cn bao nhiu m3 kh thin nhin (o ktc) A. 5,883. B. 5589,462. C. 5589,083. D. 5883,246. Cu 8: Cho hi nc i qua than nng c hn hp kh A gm CO2, CO, H2. Ton b lng kh A va kh ht 48 gam Fe2O3 thnh Fe v thu c 10,8 gam H2O. Phn trm th tch CO2 trong hn hp kh A l A. 14,29. B. 28,57. C. 13,24. D. 16,14. Cu 9: 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. 2 B. 13 C. 12,30 D. 12 Cu 10: in phn mt dung dch gm a mol CuSO4 v b mol NaCl. Nu b > 2a m catot cha c kh thot ra th dung dch sau in phn cha

A. Na+, 24SO

, Cl B. Na+, 24SO

, Cu2+

C. Na+, Cl D. Na+, 24SO , Cu2+, Cl

Cu 11: t chy hon ton hn hp M gm hai ru (ancol) X v Y l ng ng k tip ca nhau, thu c 0,3 mol CO2 v 0,425 mol H2O. Mt khc, cho 0,25 mol hn hp M tc dng vi Na (d), thu c cha n 0,15 mol H2. Cng thc phn t ca X, Y l : A. C2H6O, CH4O. B. C3H6O, C4H8O C. C2H6O2, C3H8O2. D. C2H6O, C3H8O. Cu 12: Cht X c cng thc phn t C3H7O2N v lm mt mu dung dch brom. Tn gi ca X l A. amoni acrylat. B. metyl aminoaxetat. C. axit -aminopropionic D. axit -aminopropionic



Cu 13: Phng php thy luyn thng dng iu ch A. kim loi c cp oxi ha - kh ng trc Zn2+/Zn. B. kim loi hot ng mnh.

C. kim loi c tnh kh yu. D. kim loi m ion dng ca n c tnh oxi ha yu. Cu 14: X phng ho mt hp cht c cng thc phn t C10H14O6 trong dung dch NaOH (d), thu c glixerol v hn hp gm ba mui (khng c ng phn hnh hc). Cng thc ca ba mui l: A. CH3-COONa, HCOONa v CH3-CH=CH-COONa B. CH2=CH-COONa, CH3-CH2-COONa v HCOONa C. CH2=CH-COONa, HCOONa v CHC-COONa D. HCOONa, CHC-COONa v CH3-CH2-COONa Cu 15: Cho 3,2 gam Cu tc dng vi 100ml dung dch hn hp HNO3 0,8M + H2SO4 0,2M, sn phm kh duy nht ca HNO3 l kh NO. S gam mui khan thu c l A. 7,9. B. 8,84. C. 5,64. D. Tt c u sai. Cu 16: Cho 3,2 gam Cu tc dng vi 100ml dung dch hn hp HNO3 0,8M + H2SO4 0,2M, sn phm kh duy nht ca HNO3 l kh NO. Th tch (tnh bng lt) kh NO ( ktc) l A. 0,336. B. 0,224. C. 0,672. D. 0,448. Cu 17: Cho cc cht HCl (X); C2H5OH (Y); CH3COOH (Z); C6H5OH (phenol) (T). Dy gm cc cht c sp xp theo tnh axit tng dn (t tri sang phi) l: A. (T), (Y), (X), (Z). B. (Y), (T), (Z), (X). C. (Y), (T), (X), (Z). D. (X), (Z), (T), (Y). Cu 18: Cho 10,8 gam hn hp A gm Mg v Fe tc dng vi 500 ml dung dch AgNO3 sau khi phn ng xy ra hon ton thu c dung dch B v 46 gam cht rn D. Cho dung dch B tc dng vi dung dch NaOH d sau nung kt ta ngoi khng kh n khi lng khng i th c 12 gam cht rn E. Tnh nng mol ca dung dch AgNO3. A. 0,5 B. 0,8 C. 1 D. 1,25 Cu 19: un nng hn hp ancol gm CH3OH v cc ng phn ca C3H7OH vi xc tc H2SO4 c c th to ra bao nhiu sn phm hu c ? A. 5 B. 7 C. 6 D. 4



Cu 20: C 5,668 gam cao su buna-S phn ng va ht vi 3,462 gam brom trong CCl4. T l

mt xch butaien v stiren trong cao su buna-S l

A. 1 : 3. B. 1 : 2. C. 2 : 3. D. 3 : 5

Cu 21: Cho phn ng sau: Mg + HNO3 Mg(NO3)2 + NO + N2O + H2O Nu t l s mol gia NO v N2O l 2:1, th h s cn bng ti gin ca HNO3 trong phng

trnh ho hc l

A. 20 B. 12 C. 18 D. 30

Cu 22: C th iu ch bc kim loi t dung dch AgNO3 bng cch

A. nhit phn. B. in phn vi in cc than ch.

C. cho tc dng vi kim loi mnh nh Ca. D. in phn vi in cc Au.

Cu 23: Trong phng th nghim ngi ta iu ch NO2 bng cch cho Cu tc dng vi HNO3

c khi un nng. NO2 c th chuyn thnh N2O4 theo cn bng:

2NO2 N2O4

Cho bit NO2 l kh c mu nu v N2O4 l kh khng mu. Khi ngm bnh cha NO2 vo chu

nc thy mu trong bnh kh nht dn. Hi phn ng thun trong cn bng trn l

A. To nhit B. Thu nhit

C. Khng to hay thu nhit D. Mt phng n khc

Cu 24: Ch dng mt thuc th phn bit cc kim loi sau: Mg, Zn, Fe, Ba ?

A. Dung dch NaOH B. Dung dch H2SO4 long

C. Dung dch HCl D. Nc

Cu 25: Dung dch c pH = 4 s c nng ion OH bng

A. 104 B. 1010 C. 4 D. 104

Cu 26: Cho 20 gam mt este X (c phn t khi l 100 vC) tc dng vi 300 ml dung dch NaOH 1M. Sau phn ng, c cn dung dch thu c 23,2 gam cht rn khan. Cng thc cu

to ca X l

A. CH2=CHCOOC2H5. B. C2H5COOCH=CH2.

C. CH2=CHCH2COOCH3. D. CH3COOCH=CHCH3.



Cu 27: Pht biu no di y khng ng? A. Vi mi nguyn t, khi lng nguyn t bng s khi. B. V nguyn t c cu thnh bi cc ht electron. C. Ht nhn nguyn t c cu thnh t cc ht proton v ntron. D. Nguyn t c cu thnh t cc ht c bn l proton, ntron v electron. Cu 28: Trn 13,6 gam phenyl axetat vi 250 ml dung dch NaOH 1M. Sau khi phn ng xy ra hon ton c cn dung dch sau phn ng thu c m gam cht rn khan. Gi tr ca m l A. 19,8 gam B. 10,2 gam C. 21,8 gam D. 8,2 gam Cu 29: Nguyn t nguyn t A c tng s phn t cu to (p, n, e) l 40. V tr ca A trong bng tun hon (, chu k, nhm) l A. 12, chu k 3, nhm IIA B. 20, chu k 4, nhm IIA C. 19, chu k 4, nhm IA D. 13, chu k 3, nhm IIIA Cu 30: Lin kt hiro gia cc phn t no sau y l bn vng nht? A. CH3COOH B. CH3CH2NH2 C. H2O D. CH3CH2OH Cu 31: Cho cht hu c X c cng thc phn t C2H8O3N2 tc dng vi dung dch NaOH, thu c cht hu c n chc Y v cc cht v c. Khi lng phn t (theo vC) ca Y l A. 46 B. 68 C. 45 D. 85 Cu 32: 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. 99:1 B. 2:3. C. 1:99. D. 3:2. Cu 33: Cho cc cht sau: CH3-CH2-CHO (1) ; CH2=CH-CHO (2) ; (CH3)2CH-CHO (3) ; CH2=CH-CH2-OH (4). Nhng cht phn ng hon ton vi lng d H2 (Ni, toC) cng to ra mt sn phm l:

A. (2), (3), (4). B. (1), (3), (4). C. (1), (2), (4). D. (1), (2), (3). Cu 34: Tin hnh th nghim sau: Cho mt t bt ng kim loi vo ng nghim cha dung dch FeCl3, lc nh ng nghim s quan st thy hin tng no sau y? A. Kt ta st xut hin v dung dch c mu xanh. B. ng tan v dung dch c mu xanh. C. Khng c hin tng g xy ra D. C kh mu vng lc ca Cl2 thot ra



Cu 35: Hp cht X c cng thc phn t trng vi cng thc n gin nht, va tc dng

c vi axit va tc dng c vi kim trong iu kin thch hp. Trong phn t X, thnh

phn phn trm khi lng ca cc nguyn t C, H, N ln lt bng 40,449%; 7,865% v

15,73%; cn li l oxi. Khi cho 4,45 gam X phn ng hon ton vi mt lng va dung

dch NaOH (un nng) thu c 4,85 gam mui khan. Cng thc cu to thu gn ca X l A. CH2=CHCOOONH4 B. H2NCOO-CH2CH3

C. H2NCH2COO-CH3 . D. H2NC2H4COOH.

Cu 36: in phn 100ml dung dch CuSO4 nng 0,5M vi in cc tr mt thi gian th

thy khi lng catot tng 1gam. Nu dng dng in mt chiu c cng 1A, th thi gian

in phn ti thiu l

A. 0,45 gi. B. 40 pht 15 giy. C. 0,65 gi. D. 50 pht 15 giy.

Cu 37: Cho dy cc cht: phenol, anilin, phenylamoni clorua, natri phenolat, etanol. S cht

trong dy phn ng c vi NaOH (trong dung dch) l A. 3 B. 4 C. 1 D. 2

Cu 38: Cht phi thm vo dung dch (dung mi nc) lm pH thay i t 12 thnh 10 l A. natri hiroxit. B. natri axetat. C. nc ct. D. kh amoniac

Cu 39: Trong thc t, phenol c dng sn xut

A. nha poli(vinyl clorua), nha novolac v cht dit c 2,4-D B. nha rezol, nha rezit v thuc tr su 666.

C. nha rezit, cht dit c 2,4-D v thuc n TNT.

D. poli(phenol-fomanehit), cht dit c 2,4-D v axit picric Cu 40: Thu phn 1250 gam protein X thu c 425 gam alanin. Nu phn t khi ca X

bng 100.000 vC th s mt xch alanin c trong phn t X l

A. 382. B. 479. C. 453. D. 328.

Cu 41: Nhng thanh Zn, thanh Cu v thanh hp kim Zn-Cu trong ba cc cha dung dch HCl

nng bng nhau. Hy cho bit tc thot kh H2 cc no din ra nhanh nht ?

A. Cc 1 B. Cc 2 C. Cc 1 v 3 D. Cc 3



Cu 42: Thm t t 300ml dung dch HCl 1M vo 200ml dung dch Na2CO3 1M thu c dung dch A v gii phng V lt kh CO2 ktc. Cho thm nc vi vo dung dch A ti d thu c m

gam kt ta trng. Gi tr ca m v V l

A. 10 gam v 3,36 lt B. 15 gam v 2,24 lt

C. 15 gam v 3,36 lt D. 10 gam v 2,24 lt

Cu 43: t chy hon ton 20,0 ml hn hp X gm C3H6, CH4, CO (th tch CO gp 2 ln th tch CH4), thu c 24,0 ml kh CO2 (cc th tch kh o cng iu kin nhit v p sut). T khi ca X so vi hiro l

A. 12,9 B. 25,8 C. 22,2 D. 11,1 Cu 44: Cht X c cng thc phn t C4H9O2N. Bit:

X + NaOH Y + CH4O Y + HCl (d) Z + NaCl Cng thc cu to ca X v Z ln lt l

A. H2NCH2CH2COOCH3 v CH3CH(NH3Cl)COOH. B. CH3CH(NH2)COOCH3 v CH3CH(NH3Cl)COOH. C. CH3CH(NH2)COOCH3 v CH3CH(NH2)COOH. D. H2NCH2COOC2H5 v ClH3NCH2COOH.

Cu 45: t chy hon ton mt hp cht hu c X cn 6,72 lt O2 (ktc). Sn phm chy gm CO2 v hi H2O. Cho hp th ht vo bnh ng dung dch Ba(OH)2 thy c 19,7 gam kt ta xut hin v khi lng dung dch gim 5,5 gam. Lc b kt ta un nng nc lc li thu c

9,85 gam kt ta na. Cng thc phn t ca X l

A. C2H6O B. C2H6

C. C2H6O2 D. Khng xc nh c

Cu 46: Dy gm cc cht c th iu ch trc tip (bng mt phn ng) to ra axit axetic l: A. CH3CHO, C2H5OH, C2H5COOCH3. B. C2H4OH)2, CH3OH, CH3CHO. C. CH3CHO, C6H12O6 (glucoz), CH3OH. D. CH3OH, C2H5OH, CH3CHO. Cu 47: Hn hp kh X gm H2 v C2H4 c t khi so vi He l 3,75. Dn X qua Ni nung nng, thu c hn hp kh Y c t khi so vi He l 5. Hiu sut ca phn ng hiro ho l

A. 40%. B. 50%. C. 25%. D. 20%.



Cu 48: Hy la chn cc ho cht cn thit trong phng th nghim iu ch clo?

A. KMnO4, dung dch HCl m c

B. MnO2, dung dch H2SO4 m c v tinh th NaCl.

C. MnO2, dung dch HCl long.

D. KMnO4, dung dch H2SO4 m c v tinh th NaCl.

Cu 49: Pht biu no sau y sai?

A. S nguyn t hiro trong phn t este n v a chc lun l mt s chn.

B. Sn phm ca phn ng x phng ho cht bo l axit bo v glixerol.

C. Trong cng nghip c th chuyn ho cht bo lng thnh cht bo rn.

D. Nhit si ca este thp hn hn so vi ancol c cng phn t khi.

Cu 50: Dng thuc th no sau y phn bit bn cht rn: NaCl, CaCO3, Na2CO3 v

BaSO4

A. Nc v CO2 B. Nc C. Nhit phn D. Qu tm





Cho bit s khi ca cc nguyn t (theo vC): H = 1; C = 12; N = 14; O = 16; F = 19; Na = 23;

Mg = 24; Al = 27; Si = 28; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Cr = 52; Fe = 56; Ni = 58;

Cu = 64; Zn = 65; Ag = 108; Ba = 137

Cu 1: un nng hn hp kh X (cha 0,02 mol C2H2 v 0,03 mol H2) c mt xc tc thch hp mt thi gian c hn hp kh Y. Cho Y qua t t dung dch nc brom d thy cn li 0,448

lt (ktc) hn hp kh Z c t khi hi vi H2 bng 4,5. Hi khi lng bnh nc brom tng ln

bao nhiu gam? A. 0,40 gam. B. 0,35 gam. C. 0,45 gam. D. 0,56 gam.

Cu 2: pH ca dung dch CH3COOH 0,1M (Ka = 2.105) v NH3 0,1M (Kb = 1,8.105) ln lt l:

A. 3,85; 12 B. 2,85; 11,13 C. 2,95; 11,5 D. 4,95; 11 Cu 3: Cho 15,6 gam hn hp 2 ancol n chc, k tip nhau trong dy ng ng tc dng ht vi 9,2 gam Na thu c 24,5 gam cht rn. Hai ancol l: A. C2H5OH; C3H7OH B. CH3OH; C2H5OH C. C3H5OH; C4H7OH D. C3H7OH; C4H9OH Cu 4: Cho CO phn ng vi CuO mt thi gian to hn hp kh A v hn hp rn B. Cho A phn ng vi mt dung dch cha 0,015 mol Ca(OH)2 to 1 gam kt ta. Ly cht rn B phn ng vi dung dch HNO3 c, nng d to V lt kh (ktc) mu nu . Gi tr ca V l:

A. 0,448 lt v 0,896 lt. B. 0,672 lt v 0,896 lt C. 0,224 lt v 0,896 lt D. 0,448 lt v 0,672 lt



Cu 5: Cho t t dung dch cha a mol HCl vo dung dch cha b mol Na2CO3 ng thi khuy u, thu c V lt kh (ktc) v dung dch X. Khi cho d nc vi trong vo dung dch X xut hin kt ta. Biu thc lin h gia V vi a, b l:

A. V = 11,2(a + b) B. V = 22,4(a - b) C. V = 11,2(a - b) D. V = 22,4(a + b) Cu 6: Cho flo i qua dung dch NaOH long (2%) v lnh; phn ng xy ra theo phng trnh ha hc no sau y ? A. 3F2 + 6NaOH 5NaF + NaFO3 + 3H2O B. F2 + 2NaOH 2NaF + OF2 + H2O C. F2 + 2NaOH 2NaF + H2O2 D. F2 + 2NaOH NaF + NaFO + H2O Cu 7: Nng mol ca ion H+ trong cc dung dch sau: CH3COONa 0,10M (Kb ca CH3COO l 5,71.1010); NH4Cl 0,10M (Ka ca 4NH+ l 5,56.1010) ln lt l: A. 1,56.109M; 4,36.106M B. 1,02.109M; 5,36.106M C. 1,54.108M; 7,36.106M D. 1,32.109M; 7,46.106M Cu 8: Saccaroz c th to ra este vi CH3COOH cha ti a 8 gc CH3COO trong phn t. Cng thc phn t ca este ny l:

A. C20H38O19 B. C20H40O27 C. C28H38O19 D. C28H44O27 Cu 9: Chiu tng dn linh ng ca nguyn t H trong cc nhm chc ca 4 cht: C2H5OH, CH3COOH, HCOOH, C6H5OH l: A. C2H5OH < C6H5OH < HCOOH < CH3COOH B. C6H5OH < C2H5OH < HCOOH < CH3COOH C. C2H5OH < C6H5OH < CH3COOH < HCOOH D. C6H5OH < C2H5OH < CH3COOH < HCOOH Cu 10: Poli(vinyl clorua) c iu ch t kh thin nhin theo s :

CH4 %75 CH CH %80

CH2=CHCl %90

(-CH2-CHCl-)n iu ch 100 kg PVC cn bao nhiu m3 kh thin nhin (ktc), bit rng trong kh thin nhin c 95% CH4. A. 132,608 m3 B. 139,73 m3 C. 125,97 m3 D. 36,77 m3 Cu 11: Trn 0,54 gam bt Al vi bt Fe2O3 v CuO ri tin hnh phn ng nhit nhm thu c hn hp A . Ha tan hon ton A trong dung dch HNO3 c hn hp kh gm NO v

NO2 c t l mol tng ng l 1:3. Th tch (ktc) kh NO, NO2 ln lt l: A. 0,224 lt v 0,672 lt B. 0,672 lt v 8,96 lt C. 1,12 lt v 3,36 lt D. 2,24 lt v 6,72 lt



Cu 12: Tng s ht p, n, e trong hai nguyn t kim loi A v B l 142, trong tng s ht mang in nhiu hn tng s ht khng mang in l 42. S ht mang in ca nguyn t B

nhiu hn ca A l 12. Hai kim loi A, B ln lt l:

A. Ca, Fe B. K, Ca C. Mg, Fe D. Na, K Cu 13: iu ch vinyl axetat ngi ta phi dng 2 cht : A. CH3COOH v CH2=CH OH B. CH3COONa v CH2=CH Cl C. CH3COOH v CHCH D. CH3COOH v CH3 CHO Cu 14: Ha tan 12 gam Mg trong V lt dung dch HNO3 2M thu c 2,24 lt kh N2O (ktc) v dung dch X. C cn dung dch X thu c m gam mui khan. Gi tr ca V v m ln lt l: A. 500; 76 B. 500; 74 C. 625; 74 D. 625; 76 Cu 15: Ln men 10 kg go np (cha 80% tinh bt) thu c bao nhiu lt cn etylic 96o (bit

hiu sut qu trnh ln men t 50% v 2 5C H OH

D = 0,807 g/ml) ? A. 3,634 lt B. 4,713 lt C. 2,932 lt D. 4,556 lt Cu 16: Kh CO2 chim 0,03% th tch khng kh. Mun to ra 5 gam tinh bt cn bao nhiu lt khng kh cung cp CO2 cho phn ng quang hp ? Cho bit kh c o ktc. A. 15806 lt B. 14026,7 lt C. 13827,2 lt D. 13826 lt Cu 17: Cho dy axit c oxi ca clo gm: HClO, HClO2, HClO3, HClO4. Trong cc cu sau y, cu no ng ? A. Tnh bn, tnh axit v kh nng oxi ha gim theo chiu t tri qua phi B. Tnh bn v tnh axit gim dn theo chiu t tri qua phi C. Kh nng oxi ha tng theo chiu t tri qua phi D. Tnh bn v tnh axit tng dn, kh nng oxi ha gim theo chiu t tri qua phi Cu 18: t chy hon ton a mol axit hu c Y c 2a mol CO2. Mt khc trung ha a mol Y cn va 2a mol NaOH. Cng thc cu to thu gn ca Y l:

A. HOOC CH2CH2 COOH B. C2H5 COOH C. CH3COOH D. HOOC COOH Cu 19: m gam phoi bo st X ngoi khng kh mt thi gian bin thnh hn hp Y c khi lng 30 gam gm FeO, Fe3O4, Fe2O3, Fe. Cho Y phn ng hon ton vi dung dch HNO3 thy gii phng ra 5,6 lt kh NO duy nht (ktc). Gi tr ca m l:

A. 22,5 gam. B. 27,5 gam. C. 26,2 gam. D. 25,2 gam.



Cu 20: nhn bit ba axit c, ngui: HCl, H2SO4, HNO3 ng ring bit trong 3 l b mt nhn, nn dng thuc th l:

A. Al B. CuO C. Cu D. Fe

Cu 21: Crackinh 10 lt butan to thnh V (lt) hn hp kh (cc kh o cng iu kin). Tnh V, bit hiu sut phn ng crackinh l 70%

A. 20 lt B. 17 lt C. 13,5 lt D. 15 lt

Cu 22: t chy hon ton 2,24 lt (ktc) hn hp X gm 2 ankan. Sn phm thu c cho i qua bnh (1) ng H2SO4 c, bnh (2) ng dung dch Ba(OH)2 d th thy khi lng bnh (1) tng 7,2 gam v bnh (2) c m gam kt ta. Gi tr ca m l:

A. 49,25 B. 39,4 C. 78,8 D. 59,1

Cu 23: Tn gi no sau y khng ng? A. Axit -metylbutiric B. Axit 2,2-imetyl-3-etylhexanoic

C. Axit 2,4-imetylpentanoic D. Axit 2-etylbutanoic

Cu 24: Cho m gam mt ancol no, n chc X qua bnh ng CuO d nung nng. Sau khi phn ng hon ton, khi lng cht rn trong bnh gim 0,32 gam. Hn hp hi thu c c t

khi i vi H2 l 15,5. Gi tr ca m l:

A. 0,46 B. 0,32 C. 0,92 D. 0,64

Cu 25: Mt hn hp X gm 2 anehit no, n chc c tng s mol bng 0,25. Khi cho hn hp X tc dng vi AgNO3/NH3 d c 86,4 gam Ag kt ta v khi lng dung dch gim 77,5

gam. Xc nh CTPT ca 2 anehit trn.

A. HCHO; C3H7CHO B. CH3CHO; C2H5CHO

C. HCHO; C2H5CHO D. HCHO; CH3CHO

Cu 26: Mt dung dch X cha cc ion: 0,01 mol Ca2+ ; 0,02 mol Mg2+ ; 0,04 mol K+ ; 0,065

mol 3HCO

; 0,015 mol Cl ; 0,02 mol 3NO . Dung dch X thuc loi nc:

A. cng tm thi B. cng vnh cu C. cng ton phn D. mm

Cu 27: Cho cc cht sau: etyl axetat; ancol etylic; axit acrylic; phenol; phenyl amoniclorua; anilin; ancol benzylic; p-crezol. S cht tc dng vi NaOH l:

A. 3 B. 5 C. 6 D. 4



Cu 28: Ha tan hon ton hn hp X gm FeS v FeCO3 bng dung dch HNO3 c, nng thu c hn hp kh Y gm 2 kh c t khi so vi H2 bng 22,805. Thnh phn % khi lng mi

mui trong hn hp u l:

A. 20,87%; 79,13% B. 30,87%; 69,13% C. 40,87%; 59,13% D. 10,87%; 89,13% Cu 29: Cho hn hp X gm 2 cht hu c c cng CTPT C2H7NO2 tc dng va vi dung dch NaOH, un nng thu c dung dch Y v 4,48 lt hn hp Z (ktc) gm 2 kh u lm

xanh giy qu m. T khi hi ca Z i vi H2 bng 13,75. C cn dung dch Y thu c khi

lng mui khan l:

A. 15,7 gam B. 14,3 gam C. 8,9 gam D. 16,5 gam Cu 30: Sc t t V lt kh CO2 (ktc) vo 100ml dung dch cha NaOH 1M v Ca(OH)2 2M (toC). Sau phn ng hon ton thu c 10 gam kt ta. Gi tr ca V l: A. 4,48 hoc 6,72 B. 2,24 hoc 6,72 C. 4,48 hoc 8,96 D. 2,24 hoc 8,96 Cu 31: Ngm mt vt bng Cu c khi lng 10 gam trong 250 gam dung dch AgNO3 4%. Sau khi ly vt ra th lng AgNO3 trong dung dch gim 17%. Khi lng ca vt sau phn

ng l:

A. 6,35 gam. B. 4,47 gam. C. 10,84 gam. D. 10,76 gam. Cu 32: 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 hoc dung dch NaOH u cho 2 kh v c A, B. X c

th l:

A. HCOOH, HCOONa B. HCHO, HCOOH, HCOONH4

C. HCOOCH3, HCOONH4 D. HCHO, HCOOH Cu 33: Mt loi qung cha st trong t nhin c loi b tp cht. Ha tan qung ny trong dung dch axit HNO3 thy c kh mu nu bay ra, dung dch thu c cho tc dng vi BaCl2 thy c kt ta trng khng tan trong axit. Hy cho bit tn ca qung?

A. Hematit B. Xierit C. Pyrit st D. Manhetit Cu 34: Khi thc hin phn ng este ha 1 mol CH3COOH v 1 mol C2H5OH, lng este ln

nht thu c l 32

mol. t hiu sut cc i l 90% (tnh theo axit) khi tin hnh este ha 1

mol CH3COOH cn s mol C2H5OH l:

A. 0,342 B. 2,925 C. 2,412 D. 0,456



Cu 35: Cho cc phn ng sau:

a) FeO + HNO3 c ot

b) FeS + H2SO4 c

ot

c) Al2O3 + HNO3 c ot

d) Cu + dd FeCl3

e) HCHO + H2 oNi, t

f) fructoz + AgNO3 trong dd NH3

g) C2H4 + Br2 h) glixerol + Cu(OH)2 Dy gm cc phn ng u thuc loi phn ng oxi ha kh l:

A. a, b, d, e, f, h B. a, b, c, d, e, h C. a, b, d, e, f, g D. a, b, c, d, e, g

Cu 36: Hn hp A gm mt ankan v mt anken. t chy hn hp A th thu c a (mol)

H2O v b (mol) CO2. Hi t s aT b= c gi tr trong khong no ?

A. 1 T 2 B. 1 < T < 2 C. 1,5 < T < 2 D. 1,2 < T < 1,5

Cu 37: Cho 5,6 gam hn hp NaOH v KOH (c thnh phn thay i) ha tan vo nc c dung dch A. Cho dung dch A phn ng vi dung dch cha 0,04mol AlCl3, khi lng kt ta

thu c ln nht v nh nht l:

A. 3,12 gam v 2,6 gam. B. 1,56 gam v 3,12gam.

C. 2,6 gam v 1,56 gam. D. 3,12 gam v 1,56 gam.

Cu 38: Hn hp X gm 2 axit HCOOH v CH3COOH (t l mol 1:1). Ly 5,3 gam hn hp X tc dng vi 5,75 gam C2H5OH (c xc tc H2SO4 c) thu c m gam hn hp este (hiu sut

cc phn ng u bng 80%). Gi tr ca m l: A. 8,10 B. 6,48 C. 16,20 D. 10,12

Cu 39: Khi pha long dung dch CH3COOH 1M thnh dung dch CH3COOH 0,5M th: A. in li gim B. in li tng 2 ln

C. in li tng D. in li khng i

Cu 40: in phn dung dch CuCl2 vi in cc tr, sau mt thi gian thu c 0,32 gam Cu catt v mt lng kh X anot. Hp th hon ton lng kh X trn vo 200ml dung dch

NaOH ( to thng), sau phn ng nng NaOH cn li l 0,05M (gi thit th tch dung dch

khng thay i). Nng ban u ca dung dch NaOH l:

A. 0,1M B. 0,2M C. 0,15M D. 0,05M



Cu 41: Cc phn ng di y, phn ng no khng gi nguyn mch polime ?

A. Cao su t nhin + HCl B. Poli(vinyl axetat) + dd NaOH ot

C. tinh bt + dd H2SO4 ot

D. Thy tinh plexiglas + dd NaOH

ot

Cu 42: Cho tt c cc ng phn n chc mch h c cng CTPT C2H4O2 ln lt tc dng vi: Na, NaOH, NaHCO3. S phn ng xy ra l:

A. 2 B. 3 C. 5 D. 4

Cu 43: ha tan hon ton 8,4 gam st ch cn V1 ml dung dch HNO3 1M, sau phn ng thu c V2 lt kh NO (l sn phm kh duy nht) ktc. Gi tr ca V1, V2 ln lt l A. 600; 2,24. B. 400; 3,36. C. 600; 3,36. D. 400; 2,24.

Cu 44: gang trong khng kh m ti in cc cacbon xy ra qu trnh:

A. O2 + H2O + 4e 4OH B. Fe Fe3+ + 3e

C. Fe Fe2+ + 2e D. 2H+ + 2e H2

Cu 45: thu ly Ag tinh khit t hn hp X gm (a mol Al2O3; b mol CuO; c mol Ag2O), ngi ta ha tan X bi dung dch cha (6a + 2b + 2c) mol HNO3 c dung dch Y, sau thm (gi thit hiu sut cc phn ng u l 100%): A. c mol bt Cu vo Y B. c mol bt Al vo Y

C. 2c mol bt Al vo Y D. 2c mol bt Cu vo Y

Cu 46: Cho 44 gam dung dch NaOH 10% tc dng vi 10 gam dung dch H3PO4 39,2%. Mui no sau y thu c sau phn ng ?

A. Na2HPO4 v Na3PO4. B. NaH2PO4.

C. Na2HPO4 v NaH2PO4. D. Na2HPO4. Cu 47: Sp xp cc cht sau theo th t tng dn tnh axit: A. H2SO4, HClO4, H3PO4 B. HClO4, H2SO4, H3PO4 C. H3PO4, H2SO4, HClO4 D. H2SO4, H3PO4, HClO4 Cu 48: C cc cht ng trong cc l mt nhn l: benzen, ancol etylic, phenol, glixerol, glucoz. Chn thuc th no sau y nhn ra cc cht ?

A. Cu(OH)2, dung dch NaOH B. Na, CuO, to C. Cu(OH)2, dung dch HCl D. Cu(OH)2, dung dch HNO3



Cu 49: Cho cc phn t: NO2, CH4, PCl3, PCl5, NH4NO3, CO. S phn t m c cng thc

electron ca nguyn t trung tm khng tun theo quy tc bt t l

A. 4. B. 5. C. 3. D. 2.

Cu 50: Cc ng phn ng vi CTPT C8H10O (u l dn xut ca benzen) c tnh cht: tch

H2O thu c sn phm c th trng hp to polime, khng tc dng vi NaOH. S lng ng

phn ng vi cng thc C8H10O tha mn tnh cht trn l:

A. 2 B. 1 C. 3 D. 4





Cho bit khi lng nguyn t (theo vC hay u) ca cc nguyn t: H = 1; C = 12; N = 14;

O = 16; F = 19; Na = 23; Mg = 24; Al = 27; P = 31; S = 32; Cl = 35,5; K = 39; Ca = 40; Cr = 52;

Mn = 55; Fe = 56; Cu = 64; Zn = 65; Br = 80; Ag = 108; I = 127; Ba = 137; Au = 197; Pb = 207

Cu 1: Cacbon phn ng vi tt c cc cht trong dy no sau y ? A. CO, Al2O3, HNO3 (c), H2SO4 (c) B. CO, Al2O3, K2O, Ca C. Fe2O3, CO2, H2, HNO3 (c) D. Fe2O3, Al2O3, CO2, HNO3 Cu 2: Argon tch ra t khng kh l hn hp ca ba ng v: 99,600% 40Ar; 0,063% 38Ar; 0,337% 36Ar. Th tch ca 10 gam Ar ( ktc) l A. 5,600 B. 3,360 C. 5,602 D. 3,362 Cu 3: Sc kh clo vo dung dch CrCl3 trong mi trng NaOH. Sn phm thu c l A. Na[Cr(OH)4], NaCl, NaClO, H2O B. Na2CrO4, NaCl, H2O C. Na2Cr2O7, NaCl, H2O D. Na2CrO4, NaClO3, H2O Cu 4: Phn t khi ca xenluloz vo khong 1.000.000 2.400.000. Hy tnh gn ng khong bin i chiu di mch xenluloz (theo n v mt). Bit rng chiu di mi mt xch C6H10O5 khong 5A0 (1A0 = 1010m).

A. 3,0864.106m n 7,4074.106m B. 3,8064.106m n 6,4074.106m

C. 3,0864.107m n 7,4074.107m D. 3,0864.106m n 7,4074.107m Cu 5: Cho 10,5 gam hn hp bt Al v mt kim loi kim M vo nc. Sau phn ng thu c dung dch X v 5,6 lt kh ( ktc). Cho t t dung dch HCl vo dung dch X n kt ta ln nht. Lc kt ta, sy kh, cn c 7,8 gam. Kim loi M l A. Na B. K C. Li D. Rb



Cu 6: Cho cc cht sau: (1) CH3CH(NH2)COOH; (2) HOOC-CH2-CH2-COOH; (3) HO-CH2-COOH; (4) HCHO v C6H5OH; (5) HO-CH2-CH2-OH v p-C6H4(COOH)2; (6) H2N[CH2]6NH2 v HOOC[CH2]4COOH Cc trng hp c th tham gia phn ng trng ngng l A. 1, 3 ,4, 5,6 B. 1, 2, 3, 4, 5, 6 C. 1, 6 D. 1, 3 ,5 ,6 Cu 7: Khi cho 39 gam kim loi vo 362 gam nc. Sau khi phn ng kt thc thu c dung dch X v 22,4 lt kh ( 0oC; 0,5 atm). Nng % ca dung dch X l A. 13,97% B. 14,00% C. 14,01% D. 15,00% Cu 8: Trong gi thc hnh ho hc, mt nhm hc sinh thc hin phn ng ca kim loi Cu tc dng vi HNO3 c v HNO3 long. Hy chn bin php x l tt nht trong cc bin php sau y chng nhim khng kh trong phng th nghim:

A. Sau th nghim nt ng nghim bng bng c tm cn B. Sau th nghim nt ng nghim bng bng c tm nc C. Sau th nghim nt ng nghim bng bng c tm nc vi D. Sau th nghim nt ng nghim bng bng c tm gim n Cu 9: Khi nhit tng ln 10o, tc ca mt phn ng ho hc tng ln 3 ln. tc ca phn ng (ang tin hnh 30oC) tng ln 81 ln, cn phi thc hin nhit l bao nhiu ?

A. 80oC B. 60oC C. 70oC D. 50oC Cu 10: Cho cc cht: CH3COOH (X); ClCH2COOH (Y); CH3CH2COOH (Z); Cl2CHCOOH (T). Dy gm cc cht c sp xp theo tnh axit tng dn (t tri sang phi) l: A. (X), (Z), (Y), (T) B. (Z), (X), (Y), (T) C. (Z), (X), (T), (Y) D. (T), (Y), (X), (Z) Cu 11: Hn hp X gm 3 amin no n chc, l ng ng k tip nhau c trn theo khi lng mol phn t tng dn vi t l s mol tng ng l 1: 10 : 5. Cho 20 gam X tc dng vi

dung dch HCl va . C cn dung dch sau phn ng thu c 31,68 gam hn hp mui.

Cng thc ca 3 amin trn ln lt l:

A. C3H7NH2, C4H9NH2, C5H11NH2 B. C4H9NH2, C5H11NH2, C6H13NH2

C. CH3NH2, C2H5NH2, C3H7NH2 D. C2H5NH2, C3H7NH2, C4H9NH2



Cu 12: chun mt dung dch Fe2+ axit ho phi dng 30 ml dung dch KMnO4 0,02M. chun cng lng dung dch Fe2+ trn bng K2Cr2O7 th th tch dung dch K2Cr2O7 0,02M cn dng l A. 25ml B. 30 ml C. 15 ml D. 50 ml Cu 13: X l dung dch H2SO4 0,02M; Y l dung dch NaOH 0,035M. Khi trn ln dung dch X vi dung dch Y ta thu c dung dch Z c th tch bng tng th tch hai dung dch mang trn v c pH = 2. T l th tch gia dung dch X v dung dch Y l A. 2:3 B. 1:2 C. 3:2 D. 2:1 Cu 14: Cho 4 hp cht thm A, B, C, D c nhit si tng ng nh sau: 80; 132,1; 181,2; 184,4oC. Cng thc A, B, C, D tng ng l : A. C6H6, C6H5NH2, C6H5OH, C6H5Cl B. C6H6 , C6H5Cl, C6H5OH, C6H5NH2 C. C6H5Cl, C6H6, C6H5NH2, C6H5OH D. C6H6, C6H5Cl, C6H5NH2, C6H5OH Cu 15: kh hon ton 45 gam hn hp gm CuO, FeO, Fe2O3, Fe3O4 cn dng va 8,4 lt CO ( ktc). S gam kim loi thu c sau phn ng l A. 38 B. 39 C. 24 D. 42 Cu 16: Nung nng (trong iu kin khng c khng kh) mt hn hp gm 0,54 gam bt nhm, 0,24 gam bt magie v lu hunh d. Nhng cht sau phn ng cho tc dng vi dung dch H2SO4 long d. Kh sinh ra dn vo dung dch AgNO3 d thy c m gam kt ta. Gi tr ca m l A. 9,92 B. 7,44 C. 12,40 D. 10,92 Cu 17: Trn u 3,39 gam hn hp Al, Fe3O4 v CuO (cc cht c cng s mol) ri tin hnh phn ng nhit nhm thu c hn hp X. Cho X tc dng vi dung dch HNO3 d c V ml ( ktc) hn hp kh NO2 v NO theo t l mol tng ng l 1:1. Gi tr ca V l A. 224 B. 560 C. 448 D. 336 Cu 18: Cho s bin ho:

NaCl HCl Cl2 KClO3 KCl Cl2 CaOCl2 C bao nhiu phn ng trong s bin ho trn thuc phn ng oxi ho kh ? A. 3 B. 5 C. 6 D. 4

Cu 19: Cho cc ion: Na+, 4NH+ , 23CO , CH3COO, 4HSO , K+, 3HCO . Tng s ion l axit v

lng tnh l A. 2 v 1 B. 1v 2 C. 1 v 1 D. 2 v 2



Cu 20: in phn 200 ml dung dch AgNO3 0,4M vi in cc tr, trong thi gian 4 gi, cng dng in l 0,402A. Tng nng mol cc cht trong dung dch sau in phn l (coi th tch ca dung dch khng thay i) A. 0,5M B. 0,1M C. 0,3M D. 0,4M Cu 21: Nicotin l hp cht hu c c 100 < M < 200. t chy hon ton 6,48 gam nicotin ri cho sn phm chy ln lt qua hai bnh: bnh 1 ng H2SO4 c, bnh 2 ng NaOH c thy khi lng bnh1 tng 5,04 gam, bnh 2 tng 17,6 gam v kh N2 thot ra c th tch l 0,896 lt (ktc). Cng thc phn t ca nicotin l A. C14H21N B. C14H20N2 C. C10H12N2 D. C10H14N2 Cu 22: Trn 5,04 lt hn hp A gm etan, etilen v propilen vi hiro (ly d) trong bnh kn c cht xc tc Ni nung nng. Sau khi phn ng xy ra hon ton, th tch kh trong bnh gim i 3,36 lt. Mt khc 14,3 gam hn hp A lm mt mu va 48 gam brom (cc th tch kh o ktc). Phn trm khi lng ca propilen trong hn hp A l: A. 31,47% B. 39,16% C. 29,37% D. 39,37% Cu 23: Trong cng nghip, axeton c iu ch t A. propan-1-ol B. propan-2-ol C. xiclopropan D. cumen Cu 24: Phn ng no sau y cha c hon chnh ? A. 3As2S3 + 28HNO3 + 4H2O 6H3AsO4 + 28NO + 9H2SO4 B. Cr2O3 + 3KNO3 + 4KOH 2K2CrO4 + 3KNO2 + 2H2O C. 4Mg + 10HNO3 4Mg(NO3)2 + NH4NO3 + 5H2O D. 2KMnO4 + 16HCl 2MnCl2 + 5Cl2 + 2KCl + 8H2O Cu 25: C bao nhiu ng phn ankin c cng thc phn t C6H10 tc dng c vi dung dch AgNO3/NH3 to ra kt ta mu vng nht ? A. 4 B. 5 C. 3 D. 2 Cu 26: Cho 6 gam brom c ln tp cht l clo vo mt dung dch c cha 1,60 gam kali bromua v lc u th ton b clo phn ng kt. Sau lm bay hi hn hp sau th nghim v sy kh thu c 1,36 gam cht rn khan. Hm lng clo c trong loi brom ni trn l A. 3,21% B. 3,19% C. 3,20% D. 3,22% Cu 27: C 6 l khng nhn ng ring bit tng dung dch long ca cc dung dch mui cng nng sau: Mg(NO3)2, MgCl2, MgSO4, CuSO4, CuCl2, Cu(NO3)2. Chn cch dng dung dch no sau y m cho thy khng nhn bit c ht cc l trn A. AgNO3, NH3 B. Pb(NO3)2, KOH C. AgNO3, BaCl2, H2SO4 D. AgNO3, NaOH



Cu 28: Cho t t n

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TuyenChonVaGioiThieu90DeThiThuMonHoaHoc LePhamThanh 0976(2).053.496 T.01