20 Bo de Thi Thu ĐH nam 2011(langtuvotinh_dx_sưu tâm)

8/6/2019 20 Bo de Thi Thu H nam 2011(langtuvotinh_dx_su tm)

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TRNG AI HOC DUY TANTRNG AI HOC DUY TANTRNG AI HOC DUY TANTRNG AI HOC DUY TANA NANGA NANGA NANGA NANG

20 B THI TH I hcMN: HO hc

(Lu hnh ni b 2010(Lu hnh ni b 2010(Lu hnh ni b 2010(Lu hnh ni b 2010----2011)2011)2011)2011)

Sinh Vin : PHAN S TNLp : K16KKT3

( Bin Son +Su Tm )( Bin Son +Su Tm )( Bin Son +Su Tm )( Bin Son +Su Tm )


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20 B THI THI HC Mn: ho hc Nm hc 2010-2011

Cch hc tt mn Ho l phi lm nhiu , bn cnh ( hehe...)[email protected] Trang2/77-LTH-2010Bai ta

G o o d l u c k dG o o d l u c k dG o o d l u c k dG o o d l u c k d

S : 011. Nguyen t- Bang HTTH Lien ket hoa hoc: (2)Cau 1. Ion AB2

- co tong so hat mang ien tch am la 30. Trong o so hat mang ien tch cua A nhieu hn cua B la 10.

V tr cua A, B trong bang he thong tuan hoan:a. Ck 2, nhom IIIA va ck 2, nhom VIA. b. Ck 3, nhom IIIA va ck 2, nhom VIA.c. CK3, nhom IIIA va ck 3, nhom VIA. d. CK2, nhom IIA va ck 3, nhom VIA.

Cau 2. X la nguyen t cha 12 proton, Y la nguyen t cha 17 proton. Cong thc cua hp chat va lien ket hnh thanhgia X va Y la:

a. X2Y : lien ket cong hoa tr. b. XY : Lien ket ion.c. XY2 : Lien ket ion. d. X2Y3: Lien ket cong hoa tr.

2. P. oxi hoa kh, can bang hoa hoc: (2)Cau 3. Hoa tan 2,4 gam FeS2 bang H2SO4 ac, nong. Kh thoat ra la SO2. The tch cua H2SO4 5M can e hoa tan va u

lng FeS2 tren la:

a. 28ml. b. 56 ml c. 72 ml d. 14 mlCau 4. Cho biet p. hoa hoc sau:

H2O (k) + CO (k) H2 (k) + CO2 (k) k cb = 0,167 ( 200oC)

Nong o H2 va CO trang thai can bang ?, biet rang hon hp ban au gom 3 mol H 2O va 4 mol CO trong bnh V=10 lt 200oC.a. 0.02M , 0,03M b. 0.03M ; 0,02M C. 0.2M ; 0,3M d. 0.1M; 0,2M

3. S ien li (2).Cau 5. Lng SO3 can them vao 100 gam d.d H2SO4 10% e c d.d H2SO4 20% la:

a. 9,756g b. 5,675g c. 3,14g d. 3,4gCau 6. Xet cac d.d:

(1). CH3COONa; (2). NH4Cl ; (3): Na2CO3 ; (4): NaHSO4 (5)NaCl.Cac d.d co pH >7 la:a. (2), (4), (5). b. (1),(3),(4) c. (2),(3),(4),(5) d. (1),(3).

4. Phi kim: (2)

Cau 7. Kh Clo tac dung c vi:(1). H2S trong d.d. (2). SO2 trong d.d. (3). NH3.a. (1),(2). b. (2), (3). c. (1), (3) d. (1), (2),(3).

Cau 8. T 0,4 mol HCl .che va u 280ml kh Cl2 (dktc) bang p. nao?a. MnO + HCl

ot c. KClO3 + HClot

b. KMnO4 + HClot d. (a,b,c) eu ung.

5. ai cng KL: (2)Cau 9. Xet 3 nguyen to co cau hnh electron lan lt la:

(X). 1s22s22p63s1. (Y). 1s22s22p63s2 ( Z). 1s22s22p63s23p1.Hiroxit cua X,Y,Z xep theo th t tnh baz tang dan.a. XOH < Y(OH)2 < Z(OH)3. c. Z(OH)3


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Cau 14. D.d A cha NaOH 1M va Ca(OH)2 0,01M. Suc 2,24 lt kh CO2 vao 400 ml d.d A thu c mot ket tua co khoilnga. 2 g b. 3 g c. 0,4g d. 1,5g.

Cau 15. Hoa tan hoan toan Al va Mg bang d.d HCl d thu c 8,96 lt kh ( ktc). mac khac khi cho mot lng hon hpnh tren vao d.d KOH d thu c 6.72 lt kh ktc. Phan tram khoi lng cua Al trong hon hp au la:a. 30,77% b. 34,62% c, 69,23% d. 53,34%

Cau 16.100 ml d.d Al2(SO4)3 tac dung vi 100 ml d.d Ba(OH)2, Nong o mol cua d.d Ba(OH)2 bang 3,0 lan nong o cuaAl2(SO4)3 thu c ket tua A. Nung A en khoi lng khong oi th thu c chat ran B ( m A - mB = 5,4), Nong omol/lit cua Al2(SO4)3 va Ba(OH)2 la: e 4a. 0,5M va 1,5M b. 1M va 3,0M c. 0,6M va 2,1M d. 0,4M va 1,4M.

7. ai cng ve hp chat hu c va hirocacbon: (2)Cau 17. Trong cac hirocacbon :

(1). n butan. (2). buten -2. (3). Propan. (4). Butin -2. (5). Xiclobutan.Nhng chat la ong phan cua nhau:a. 1 va 4 b. 1 va 3 c. 2 va 4 d. 2 va 5

Cau 18.Hon hp X ban au gom 9 lt H2, 4 lt etylen va 1 lt propin, 1 lt propan un nong hon hp X vi bot niken lamchat xuc tac thu c h.hp Y. % The tch hiro trong hon hp Y ( o dung ieu kien) la:

a).33,33% b).40% c).50,27% d). 35%8. Ru phenol (3).Cau 19. Khi cong nc vao buten -1 ( xuc tac H2SO4 loang) san pham chnh la chat nao?

a. n-butanol. b. iso butylic. c. sec butylic. d. tert butylic.Cau 20. Chon s o tach phenol va benzen ung.

Phenol(1). H2O chiet chiet

Tach lp BenzenC6H6

(2). +KOH chietC6H5OK +CO2 Phenol.

C6H6 + H2O(3). + ddBr2 loc

C6H2Br3OH + HCl

a.(1), (2). b. (2). c. (2),(3) d. (1), (2), (3).Cau 21. un nong hon hp hai ru n, n chc vi H2SO4 ac nhiet o 140

oC, thu c 21,6 gam H2O va 72 gam honhp 3 ete. Biet 3 ete co so mol bang nhau va p. xay ra hoan toan. CTCT cua hai ru.

a. C3H7OH va CH3OH. c. CH3OH va C2H5OH.

b. C2H5OH va C3H7OH. d. C2H5OH va C4H9OH.9. Anehit axit propionic. (3)Cau 22. Hai chat hu c A va B. Cho 0,1 mol moi chat tac dung vi NaOH d lan lt thu c cac muoi Natri co khoi

lng tng ng la 9,4 gam va 6,8 gam. Vay cong thc tng ng cua A va B la:a. CH3COOCH3 va HCOOCH3. b. CH2=CH-COOH va HCOOCH=CH2.c. C2H5COOH va CH3COOCH3. d. HCOOCH3 va CH3COOCH3.

Cau 23. ot chay hoan toan 0,1 mol hp chat X la muoi Natri cua axit hu c thu c 0,15 mol CO2. CTCT cua muoila:a. C2H5COONa. b. C3H7COONa. c. HCOONa. d. CH3COONa.

Cau 24. Hon hp gom Anehit fomic, axit fomic, axit axetic co khoi lng 3,78 gam. Hon hp p. vi lng d d.dAgNO3 th thu c 15,12 gam Ag. Mac khac mot na hon hp p. va u vi d.d cha 1.2 gam NaOH. % Khoilng cua anehit fomic, axit fomic, axit axetic lan lng la:a. 15,87% - 36,5% - 47,63%. b. 25,17% - 32,25% - 42,58%c. 18,26% - 37,86% - 43,88%. d. 15,87% , 36,4%; 47,73%.

10. Este Lipit. (3).Cau 25. Khi un nong este CH3COOCH2CH3. vi xuc tac la H2SO4 loang ( qua trnh 1). Va un nong CH3COOCH=CH2trong moi trng kiem.( qua trnh 2) . ac iem nao sau ay ung:a. (1) Mot chieu, (2) mot chieu. c. (1) thuan ngch, (2) mot chieu.b. (1) mot chieu, (2) thuan ngch. d. (1) thuan ngich, (2) thuan nghich.

Cau 26. Thuy phan hoan toan m gam lipit c hnh thanh 1 axit panmitic va 2 axit eloic bang d.d KOH. ( ch so axitcua lipit = 0). Lng Glixetin va tao ra p. vi Na d thu c 67,2 lt kh H 2 ( ktc). Vay khoi lng cua lipit banau la ( gia s cac p. xay ra hoan toan).a. 1,716kg. b. 1,704kg c. 1,76kg d. 1,762kg.

Cau 27. Este co Phan t lng la 88. Cho 17.6 gam A tac dung vi 300 mld.d NaOH 1M un nong. Sau o em co canhon hp sau p. thu c 23.2 gam ba ran khan. CTCT cua A la:a. HCOOCH2CH2CH3. b. C2H5COOCH3. c. CH3COOC2H5. d. HCOOCH CH = CH2

phenolbenzen

phenolbenzen

phenolbenzen

phenolatkalibenzen

phenolbenzen

benzenC6H2Br3OH phenol


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11. Amin- aminoaxit protein. (2)Cau 28. Axit Aminoaxetic khong co tnh chat nao sau ay:

(1). Tac dung vi Na. (3). Trung ngng. (5). lam quy tm hoa o.(2). Tac dung vi ru. (4) Tac dung vi HCl. (6). Tac dung vi muoi Na2CO3.a. (3). b. (4),(5) c. (6) d. (5).

Cau 29. S ket tua protit khi un nong c goi la: e 4a. S trung ngng. b. S ngng tu. c. S phan huy. d. S ong tu.

12. Gluxit. (2).Cau 30. e nhan biet c Saccaroz va Fructoz ta dung nhng thuoc th nao sau ay.

a. Cu(OH)2/OH- bAgNO3/NH3. c. Cu(OH)2. c. H2SO4 loang, AgNO3/NH3

Cau 31. Len men Glucoz thu c m gam ru etylic ( Hieu suat 50%). Lng Glucoz con lai tiep tuc len men thuc m gam ru etylic (Hieu suat at 50%). Lng ru va ieu che c co the pha thanh 50 lt ru 40 o ( Bietkhoi lng rieng cua ru nguyen chat la 0,8g/ml). Vay khoi lng cua glucoz ban au em len men la:a. 31,3kg b. 41,74 kg c. 62,6kg d. 23,5kg.

13. Polime va vat lieu polime: (1)Cau 32. Trong cac polime sau. Polime nao la polime thien nhien:

(1). Tinh bot. (3). Xenluloz. (5). Caosu isopren. (7). T Capron.(2). Caosubuna. (4). P.V.C (6). Nilon 6-6.a. (1), (2), (3). b. ( 1), (4), (6), (7). c. (1), (3), (5). d. (1), (3), (7).

14. Tong hp hoa vo c(6).Cau 33. Cho mot d.d gom NaNO3, KNO3, Ba(NO3)2. Cho t t bot Al vao, sau o nho tiep tuc d.d X vao th thay co kh

Y bay ra. D.d X va kh Y la:(1). NaOH, NH3 (2). H2SO4 loang, NO (3). HCl, H2. (4). KOH va H2.

a. (1), (3). b. (3), (4). c. (1), (2). d. (2).Cau 34. Hoa tan 1,44 gam kim loai hoa tr II trong 150 mld.d H2SO4 0,5M. Muon trung hoa axit d trung d.d thu cphai dung het 30ml d.d xut co nong o 1M. Kim loai tren la:a. Ca b. Mg c. Zn d. Cu

Cau 35. ot chay hoan toan 8.96 lt kh SO2 ( ktc ) roi dan tat ca san pham chay cho vao 50 ml d.d NaOH 25% ( d =1,28g/ml). Nong o C% cua muoi trong trong d.d.a. 42,97% va 25,5% b. 35,28% c. 27,18% va 35% d. 50%.

Cau 36. Khi in phan hn hp dung dch NaCl va CuSO4, nu dung dch sau khi in phan hoa tan Al2O3thng xy ra trng hp nao sau ay

a.NaCl d b. NaCl d hoc CuSO4 d c. CuSO4 d d. NaCl va CuSO4 b.phan ht.Cau 37. Ngm mt vt bng Cu co khi lng 20g trong 100g dung dch AgNO3 4%. Khi ly vt ra th khilng AgNO3 trong dung dch gim 17%. Khi lng vt sau phn ng la bao nhhiu:

a.10,76g b. 21,52g c 20,304g d. 20,608 g

Cau 38. Cho 2a mol NO2vao dd cha a mol Ba(OH )2 . Them tiep vai giot dd phenolphthalein vao bnh p se thay:

a. Khong mau o b. Luon khong mau

c. Luon co mau o d. o Khong mau .15. Tong hp hu c: (6).

Cu 39: Trong s cc tn gi sau ten goi nao ung.3 metyl butan (1); 3,3 dimetylbutan (3)

2,3 dimetyl butan (2); 2,3,3 trimetyl butan (4),

a.(1) b. (2) c. (1) (2) v (4) d. (1),(2),(3),(4)Cau 40. Hon hp kh nao sau ay co the c tach cac chat kh hoan toan bang phng phap hoa hoc pho bien.

A. C2H6, SO2, C2H2, C2H4. B. C2H6, C2H4, CO2, C3H8.C. C2H4, C3H6, SO2, C2H2. D. C2H2, CO2, CH4, C3H4.

Cau 41. Cho hn hp co khoi lng m gam gom 2 ankin la ong ang lien tiep nhau. Chia hon hp thanh 2 phanbang nhau.

Phan 1: Cho suc qua d.d nc brom lay d, thay k.lng brom a tham gia p.ng la 22,4 gam. Phan 2: ot chayhoan toan, san pham chay cho qua d.d nc voi trong lay d th thay khoi lng cua bnh tang 14,24 gam. CTPT va mla:

a. C2H2, C3H4 va 6,72gam. c. C3H4 , C4H6 va 6,72 gam.b. C2H2, C3H4 va 3,36gam. d. C3H4 , C4H6 va 3,36gam.

Cau 42. Day xap xep s tang dan nhiet o soi ung la:a. HCHO < CH3OH < HCOOH< C3H7OH. C.CH3OCH3 < CH3OH < CH3CHO < CH3COOH.

CH3OH < CH3COOH < C2H5OH < C3H7OH. D.CH3OCH3


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Cau 43. Cho 10,8 gam hn hp 2 ru A ,B tc dng Na va , thu c 17,4 gam mui Na.S mol kh H2 thotra l:

a.0,15 mol b. 1,5 mol c. 3 mol d. 3,2 molCau 44. Ru X nao sau ay thoa man s o: X ,

oCuO t Y 22 0( , )+

+OMn t

Z NaOH+ T.

(1) CH3CH2OH. (2) (CH3)2CH-OH. (3) CH3 C(CH3)2OH.A. (1),(2). B. (1), C. (2),(3). D. (1),(2),(3).

15. Phan t chon cua th sinh: ( 6 )Nhom , sat(2)

Cau 45. Nung nong hon hp gom Al va Fe2O3 co khoi lng la 3.01 gam cho p. xay ra hoan toan. Chat ran sau p. hoatan trong NaOH d thay thoat ra 1,008 lit H2 ( ktc). % khoi lng cua Al va Fe2O3 trong hon hp ban au:a . %Al 45%, %Fe2O3 55% b . %Al 37%, % Fe2O3 63%c . %Al 29%, %Fe2O3 71% d . %Al 42%, %Fe2O3 58%.

Cau 46. Co ba lo ng ba hon hp Fe, FeO ; Fe + Fe 2O3; FeO va Fe2O3. Giai phap lan lt dung cac thuoc th nao diay e nhan biet c ca 3 hon hp tren:

a. Dung dd HCl sau o them NaOH vao dd thu c.b. Dung H2SO4 am ac, sau o them NaOH vao dd thu c.c. Dd HNO3 loang, sau o them NaOH vao dd thu c.d. Them dd NaOH, sau o them tiep H2SO4 ac.

Day ien hoa cua KL (1)Cau 47.Nhung mot thanh Zn vao dung dch Co2+, nhan thay co mot lp Co phu ben ngoai. Khi nhung la Pb vao dung

dch muoi tren khong thay co hien tng g? Vat trat t cua day ien hoa la:a. Zn2+/Zn < Pb2+/Pb < Co2+ /Co. c. Zn2+/Zn < Co2+/Co


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C. Chieu toa nhiet. D. Chieu tang so phan t kh.Cau 3. Cho 2 d.d H2SO4 co pH =1 va pH =2. Them 100 ml d.d NaOH 0,1M vao 100 ml moi d.d tren. Nong o mol/lt cua

muoi trong d.d sau phan ng la:A. 0,025M va 0,0025M. B. 0,25M va 0,025M.C. 0,25M va 0,0025M. D. 0,025M va 0,25M.

Cau 4. Nhom cac d.d nao sau ay eu co chung mot moi trng : ( axit, baz hay trung tnh).A. Na2CO3, KOH, KNO3. B. HCl, NH4Cl, K2SO4.C. H2CO3, (NH4)2SO4, FeCl3. D. KMnO4, HCl, KAlO2.

Cau 5. Phat bieu nao sau ay ung?A. Axit la nhng chat co kha nang nhan proton.B. D.d CH3COOH nong o 0,01M co pH =2.C. Chat ien li nguyen chat khong dan c ien.D. D.d muoi se co moi trng trung tnh.

Cau 6. Hoa tan 5,6 gam Fe bang d.d H2SO4 loang (d) thu c d.d X. D.d X phan ng va u vi V ml d.d KMnO 40,5M. Gia tr V la:A. 20ml B. 80 ml C. 40 ml D. 60 ml.

Cau 7. Trong phong th nghiem ngi ta ieu che kh Cl2 bang cach:A. Cho F2 ay Cl2 ra khoi muoi NaCl. B. Cho dd HCl ac tac dung vi MnO2 , un nong.C. ien phan NaCl nong chay. D. ien phan d.d NaCl co man ngan.

Cau 8. Nung 15,4g hon hp gom kim loai M va hoa tr II va muoi nitrat cua no en ket thuc phan ng. Chat ran con laico khoi lng 4,6g cho tac dung vi d.dch HCl thu c 0,56 lt H2 (ktc). M la kim loai nao?.A. Mg B. Cu C. Zn D. Fe

Cau 9. Cho a mol Al vao d.d cha b mol Cu 2+ va c mol Ag+. Ket thuc phan ng thu c d.d cha 2 loai ion kim loai.Ket luan nao sau ay la ung:A. c/3 a 2b/3. B. c/3 a c/3 + 2b/3C. c/3 a < c/3 + 2b/3 D. 3c a 2b/3.

Cau 10. Cho p gam Fe vao Vml d.d HNO3 1M thay Fe tan het, thu c 0,672 lt kh NO (ktc). Co can d.d sau phan ngthu c 7,82 gam muoi Fe. Gia tr cua p va V la:A. 2,24 gam va 120 ml. B. 1,68 gam va 120 ml.C. 1,8 gam va 129 ml. C. 2,43 gam va 116 ml

Cau 11. ien phan d.d CuCl2 vi ien cc tr, sau mot thi gian thu c 0,32 gam Cu catot va mot lng kh X anot. Hap thu hoan toan lng kh X tren vao 200 ml d.d NaOH ( nhiet o thng). Sau phan ng nong oNaOH con lai la 0,05M ( gia thiet coi the tch cua d.d khong thay oi). Nong o ban au cua d.d NaOH la:A. 0,15M B. 0,1M. C. 0,05M. D. 0,2M.

Cau 12. Cho 14,6 gam hon hp Fe va Zn tac dung vi d.d HCl d thu c 5,264 lt kh H 2 (ktc). Cung lng hon hpnh vay cho tac dung vi 200 ml d.d CuSO4 a mol/lt thu c 14,72 gam chat ran. Gia tr cua a la:A. 0,3M. B. 0,975M. C. 0,25M. D. 0,75M.

Cau 13. Hon hp gom FeS2 va CuS2. Cho hon hp tren phan ng vi d.d HNO3, sau phan ng ch thu c 2 muoi sunfatva kh NO. Hoi phng trnh hoa hoc nao sau ay bieu dien ung:A. 2FeS2 + 10HNO3 Fe2(SO4)3 + H2SO4 + 10NO + H2O.

Cu2S + 4HNO3 + H2SO4 2CuSO4 + 4NO + 3H2O.B. 2FeS2 + 10HNO3 Fe2(SO4)3 + H2SO4 + 10NO + H2O.

3Cu2S + 10HNO3 6CuSO4 + NO + 5H2O.C. FeS2 + HNO3 Fe(NO3)3 + H2SO4 + NO + H2O.

Cu2S + 4HNO3 + H2SO4 2CuSO4 + 4NO + 3H2O.D. FeS2 + HNO3 Fe(NO3)3 + H2SO4 + NO + H2O.

3Cu2S + 10HNO3 6CuSO4 + NO + 5H2O.

Cau 14. Cho FeS2 + HNO3 Fe2(SO4)3 + NO2 + Chat nao c bo sung trong dau A.H2O. B.Fe(NO3)3 va H2O.C. H2SO4 va H2O. D.Fe(NO3)3, H2SO4 va H2O.

Cau 15. Cho 13,5 gam bot Al tac dung vi het vi d.d HNO3 d thu c hon hp kh X gom NO va N2O. T khoi hicua X so vi H2 la 19,2. The tch hon hp o 27,3

oC va 1atm la:A. 5,6 lt. B. 6,16 lt. C. 7,142 lt D. 8,4 lt.

Cau 16. Cation R+ co phan lp ngoai cung la 3p6. Trong bang he thong tuan hoan R v tr nao?A. O th 18, chu k 3, PNC nhom VIII. B. O th 17, chu k 3, PNC nhom VII.C. O th 19, chu k 3, PNC nhom I. D. O th 19, Chu k 4, PNC nhom I.


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Cau 17. Mot hon hp gom 2 mol N2 va 8 mol H2 c dan vao mot bnh kn co xuc tac thch hp. Khi phan ng vi atti trang thai can bang thu c 9,04 mol hon hp kh. Hieu suat tong hp NH3 la:A. 20% B. 24% C. 25% D. 18%.

Cau 18. Cho tng chat : C, Fe, BaCl2, Fe3O4, Fe2O3, FeCO3, Al2O3, H2S, HI, HCl, AgNO3, Na2SO3 lan lt phan ng viH2SO4 ac, nong. So phan ng thuoc loai phan ng oxi hoa kh la:A. 5 B. 6 C. 7 D. 9

Cau 19. Chon menh e khong ung:A. Fe kh c Cu2+ trong d.d. B. Fe3+ co tnh oxi hoa manh hn Cu2+.C. Fe2+ oxi hoa c Cu. D.Tnh OXH cua cac ion tang theo th t Fe2+, H+, Cu2+, Ag+

Cau 20. Co 4 d.d muoi rieng biet: CuCl2, ZnCl2, FeCl3, AlCl3. Neu them d.d KOH (d) roi them tiep d.d NH3 (d) vao 4d.d tren th so ket tua thu c la:A. 1 B. 2 C. 3 D. 4

Cau 21. e thu lay Ag tinh khiet t hon hp X ( gom a mol Al2O3, b mol CuO, c mol Ag2O). Ngi ta hoa tan X bi d.dcha (6a + 2b+2c) mol HNO3 c d.d Y, sau o them tiep: ( biet hieu suat phan ng la 100%).A. 2c mol bot Cu vao Y. B.2 c mol bot Al vao Y.C. c mol bot Al vao Y. D. c mol bot Cu vao Y.

Cau 22. Dan kh CO qua ong ng 5 gam Fe2O3 nung nong thu c 4,2 gam hon hp gom Fe, FeO, Fe 3O4 va Fe2O3.Dan khi ra khoi ong qua d.d CaOH)2 d thu c a gam ket tua. Gia tr cua a la:

A. 4 gam. B. 5 gam C. 6 gam. D. 7,5 gam.Cau 23. Nung nong mg bot Fe trong O2, sau phan ng thu c 3 gam hon hp chat ran X. Hoa tan het hon hp X trongd.d HNO3 (d), thoat ra 0,56 lt kh NO (ktc) la san pham kh duy nhat. Gia tr cua m la:

A. 2,52 gam B. 2,22 gam. C. 2,32 gam D. 2,62 gam.

Cau 24. Trong hp chat XY ( X la kim loai va Y la phi kim), so electron cua cation bang so electron cua anion va tongso electron trong XY la 20. Biet trong moi hp chat Y ch co mot mc OXH duy nhat. Cong thc XY la:

A. MgO B. AlN. C. NaF D. LiF.Cau 25. Suc V lt kh CO2 ( ktc) vao 250 ml d.d Ba(OH)2 1M thu c 19.7 gam ket tua. Gia tr ln nhat cua V la:

A. 2.24 lt B. 11,2 lt C. 6.72 lt D. 8.96 lt.Cau 26. A la mot axit no 2 chc mach h. B la mot ru n chc mach h cha mot noi oi. E la este khong cha

nhom chc khac tao bi A va B. E co cong thc nao sau ay:A. CnH2n-6O4 B. CnH2n-4O4 C. CnH2n-2O4 D. CnH2n+1COOCmH2m-1.

Cau 27. Cho 4,48 lt hon hp X (ktc) gom 2 hirocacbon mach h loi t t qua bnh 2 cha 2 lt d.d brom 0,35M. Saukhi phan ng xay ra hoan toan, so mol brom giam i mot na va khoi lng bnh tang them 6,0 gam. Cong thcphan t cua hai hirocacbon la:A. C2H2 va C4H10. B. C3H4 va C4H8. C. C2H2 va C3H6. D. C2H2 va C4H6.

Cau 28. Thuy phan hoan toan 3,96 gam vinyl fomiat trong d.d H2SO4 loang. Trung hoa hoan toan d.d sau phan ng roicho tac dung tiep vi d.d AgNO3/NH3 d thu c m gam Ag. Gia tr cua m la:A. 23,76gam. B. 11,88 gam C. 21,6 gam. D. 15,12 gam.

Cau 29. Cho chuoi phan ng: CH4 A C2H6. Chat A la:(1). Axetylen. (2). Metyl clorua. (3). Metanal. (4). Etylen.A. (1) hoac (2) B. (1) hoac (3). C. (1) hoac (4). D. ch co (1).

Cau 30. Len men 1 lt ru etylic 9,2oC. Biet hieu suat cua qua trnh len men la 80% va khoi lng rieng cua ruetylic nguyen chat la 0,8g/ml. Khoi lng cua san pham hu c thu c la:A. 88,7 gam B. 76,8 gam. C. 75,8 gam D. 74,2 gam.

Cau 31. Chon menh e khong ung:A. CH3CH2COOCH=CH2 cung day ong ang vi CH2=CHCOOCH3.B. CH3CH2COOCH=CH2 co the trung hp tao polime.C. CH3CH2COOCH=CH2 tac dung c vi d.d brom.

D. CH3CH2COOCH=CH2 tac dung c vi d.d NaOH thu c anehit va muoi.Cau 32. A,B,C co cong thc phan t tng ng la : CH2O2, C2H4O2, C3H4O2. Phat bieu ung ve A, B,C la:

(1). A,B,C eu la axit. (2). A la axit, B la este, C la anehit co 2 chc.(3). A,B,C eu la ancol co hai chc. (4). ot chay a mol moi chat eu thu c 2a mol H2O.A. (1,3) B. (2,4) C. (1,2) D. (1,2,3,4).

Cau 33. Cho 1,8 gam mot axit n chc A phan ng het vi 40 ml d.d KOH 1M thu c d.d X. Co can d.d X c 3,59gam chat ran. A la:A. Axit acrylic. B. Axit fomic. C. Axit propionic. D. Axit axetic.

Cau 34. Hp chat X mach h, co cong thc la C 5H8O2. un nong X vi d.d NaOH thu c muoi Y va ru Z, Y tacdung vi H2SO4 tao ra axit T mach phan nhanh. Ten cua X la:


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A. metyl acrylat. B. Metyl metacrylat. C. metyl isobutyrat. D. etyl isobutyrat.Cau 35. Hon hp X gom CH3OH , axit n no A va este B tao bi A va CH 3OH. ot chay hoan toan 0,13 mol hon hp

X ( so mol CH3OH trong X la 0,08 mol) thu c 0,25 mol CO2. A,B lan lt la:A. HCOOH va HCOOCH3. B. CH3COOH va CH3COOCH3.C. C2H5COOH va C2H5COOCH3. D. C3H7COOH va C3H7COOCH3.

Cau 36. Cho s o chuyen hoa sau ay:A

X 2Br+ B

CH3CHO2H /Ni+

C

XChat X la chat nao trong cac chat cho di ay:A. C2H2 B. C2H4 C. C3H6 D. C4H8.

Cau 37. Cho 6,6 gam mot anehit X n chc X, mach h phan ng vi lng d d.d AgNO3/ NH3, un nong. Lng Agsinh ra cho phan ng het vi HNO3 loang, thoat ra 2,24 lt NO duy nhat (ktc), Cong thc cau tao thu gon cua Xla:A. CH3CHO. B. HCHO. C. CH3CH2CHO. D. CH2=CH-CHO.

Cau 38. Cho bay hi 2,38 gam hon hp X gom 2 ru n chc 136,5oC va 1 atm thu c 1,68 lt hi. Oxi hoa 4,76gam hon hp X bi CuO thu c hon hp 2 andehit. Hon hp anehit tac dung vi d.d AgNO 3/NH3 d thu c30,24 gam Ag. Phan tram khoi lng moi ru trong X.A. 56,33% va 43,67%. B. 45,28% va 54,72%.C. 66,67% va 33,33% D. 26,89% va 73,11%.

Cau 39. Cho hp chat hu c X co thanh phan % ve khoi lng la : 53,33%C ; 15,56%H; 31,11%N. Cong thc phan tcua X la:A. C2H7N. B. C6H7N. C. C3H9N. D. C4H11N.

Cau 40. -aminoaxit X cha mot nhom NH2. Cho 10,3 gam chat X tac dung vi axit HCl ( d) thu c 13,95 gammuoi khan. Cong thc cau tao thu gon cua X la:A. H2NCH2COOH. B. CH3CH2CH(NH2)COOH.C. CH3CH(NH2)COOH. D. CH3CH(NH2)COOH.

Cau 41. The tch H2 ( ktc) Can e hiro hoa hoan toan 1 tan olein ( glixerin trioleat) nh chat xuc tac Niken la baonhieu lt?A. 76018 lt B. 760.18 lt C. 7.6018 lt D. 7601.8 lt.

Cau 42. Cho 4 hp cht thm sau :O H N H 2 C H O C O O H

(1 ) (2 ) (3 ) (4 ) Cho 4 cht trn tham gia phn ng th th cht no snh hng v tr mta:

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

Cau 43. Thy phn hon ton 444 gam mt lipit thu c 46 gam glixerol (glixerin) v hai loi axit bo lA. C15H31COOH v C17H35COOH. B. C17H31COOH v C17H33COOH.C. C17H33COOH v C15H31COOH. D. C17H33COOH v C17H35COOH.

Cau 44 ot chay hoan toan a mol axit hu c Y c 2a mol CO2.Mac khac e trung hoa a mol Y can dung va u 2amol NaOH. Cong thc cau tao thu gon cua Y la:A. HOOC-COOH. B. HOOC-CH

2-CH

2-COOH.

C. CH3COOH. D. C2H5COOH.Cau 45. Glixerin co the phan ng vi bao nhieu chat sau ay.

(1). HCl. (3). NaOH (5). Cu(OH)2 (7). C6H5NH2(2). Na (4). CH3COOH (6). Mg(OH)2 (8). H2A. 5 B.4 C.3 D.6

Cau 46. Hon hp gom ru etylic , phenol va anehit axetic co khoi lng la: 55gam. Chia hon hp thanh hai phan nhnhau.Phan 1 tac dung vi Na d thay thoat ra 2.8 lt kh H2 ( ktc). Phan 2 cho tac dung vi d.d AgNO3 th thay taothanh 43.2 gam Ag. % theo so mol cua ru trong hon hp au la:A. 25,35% B 25,27% C. 44,44% D. 22,22%.


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Cau 47. Trong cac loai t sau: T tam, t vico, t nilon, t axetat, t capron, t enang: Nhng loai t nao thuoc t nhantao:A. T visco va t axetat. B. T visco va t nilon 6-6.C. Tnilon -6,6 va t capron. D. T tam va t enang.

Cau 48. Khi dan tang nhiet o: S nao sau ay la ung ve bien oi trang thai vat l cua lu huynh:A. S (ran) S ( long, linh ong) S ( long, quanh) S( hi dang phan t ) S ( hi dang n.t).B. S ( ran) S ( long quanh) S ( long, linh ong)S ( hi dang phan t ) S ( hi dang n.t).C. S ( ran) S ( long, linh ong) S ( long, quanh) S ( hi dang n.t). S( hi dang phan t )D. S ( ran) S (long, quanh ) S (long, quanh) S ( hi dang n.t) S ( hi dang phan t).

Cau 49. e trung hoa 25 gam d.d cua mot amin n chc X nong o 12,4% can dung 100 ml d.d HCl 1M. Cong thcphan t cua X la:A. CH5N. B. C2H7N. C. C3H7N. D. C3H5N.

Cau 50. Cho cac chat sau: Phenol, etanol, axit axetic, natri axetat, natriphenolat, natri hidroxit. So cap chat tac dungc vi nhau la:A. 2 B. 3 C. 1 D. 4

ap so :1. C 6. C 11. B 16. D 21. D 26. A 31. A 36. B 41. A 46. D2. C 7. B 12. B 17. B 22. B 27. C 32. C 37. A 42. D 47. A3. A 8. A 13. A 18. B 23. A 28. A 33. A 38. D 43. D 48. A

4. C 9. C 14. D 19. C 24. C 29. A 34. B 39. A 44. A 49. A5. C 10. A 15. B 20. A 25. D 30. B 35. C 40. B 45. B 50. D

Cu 1.Trong cc kim loi Cu, Al, Fe, Ag, Au. dn in ca kim loi c xp theo th tA. Au, Al, Fe, Cu, Ag. B. Au, Ag, Al, Cu, Fe.C. Ag, Cu, Au, Al, Fe. D Al, Ag, Au, Cu, Fe

Cu 2.Dng phng php in phn nng chy iu chcA. tt c cc kim loi vi tinh khit cao. B. cc kim loi hot ng trung bnh v yu.C. ch cc kim loi hot ng mnh. D. ch cc kim loi hot ng trung bnh.Cu 3. loi b tp cht km, ch, ng c ln trong bc (dng bt) m khng lm thay i khi lng bc ngi ta dngmt lng d dung dch A. AgNO3. B. Pb(NO3)2. C. Cu(NO3)2. D. Fe(NO3)3.Cu 4. Ngi ta iu ch Ba t dung dch BaCl2 bng cch

A.in phn dung dch BaCl2. B. C cn dung dch v in phn nng chy .C. dng kim loi K y Ba ra khi dung dch D. c cn dung dch v nhit phn BaCl2Cu 5. Trong mt cc nc c ho tan a mol Ca(HCO3)2 v b mol Mg(HCO3)2. kh cng ca nc trong cc cndng V lt nc vi trong, nng p mol/lit. Biu thc lin h gia V vi a, b, p lA. V = (a + b)/p. B. V = 2(a + b)/p. C. V = (a + b)/2p. D. V = (a + b) p.Cu 6. C 5 cht bt mu trng NaCl, Na2CO3, CaCO3, Na2SO4, BaSO4ng trong cc l ring bit khng ghi nhn. phn bit tng cht ch cn dngA. dung dich MgCl2. B. nc v kh CO2. C. axit H2SO4 long D. dung dch BaCl2.Cu 7. Cc kim loi phn nhm chnh nhm II tan trong nc to dung dch kim gmA. Be, Mg, Ca. B. Be, Ca, Ba. C. Ca, Sr, Ba. D. Ca, Mg, Ba.Cu 8. Nhm khng tan trong nc vA. nhm khng khc nc nhit thng. B. nhm l kim loi lng tnh.C. trn b mt nhm lun c lp nhm oxit bo v. D. mt l do khc.Cu 9. Nguyn liu sn xut nhm l qung boxit Al2O3.nH2O, thng c ln tp cht Fe2O3 v SiO2. lm sch nguynliu, ho cht cn dng l

A. dung dch NaOH c. B. dung dch NaOH long.C. dung dch HCl v kh CO2. D. dung dch NaOH c v kh CO2.

Cu 10. Cc dung dch FeSO4 (1), Fe2(SO4)3 (2), Fe(NO3)3 (3), Fe(NO3)2 (4) c axit ho bng H2SO4 long. Dung dchthuc tmkhng b mt mu trong nhm dung dch no sau y :A. (2) v (3) B. (3) v (4). C. (2)v (4). D. (1) v (2)Cu 11. 8,4 gam bt st trong khng kh sau mt thi gian thu c m gam hn hp E gm 4 cht. Ho tan ht hn hp Ebng dung dch HNO3 long, d thu c 1,12 lit kh NO duy nht (ktc). Gi tr ca mA. 9,8 gam. B. 15,6 gam. C. 10,8 gam. D. 10,08 gam.Cu 12. Cho t t dung dch NH3 vo dung dch ZnSO4 cho ti d NH3 thy


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A. khng c hin tng g xy ra. B. xut hin kt ta v tan ngay.C. xut hin kt ta trng khng tan. D. c kt ta trng tng dn, sau li tan ra.Cu 13. Kh X khng mu, mi xc, c iu ch bng phn ng ca ng vi axit sunfuric c, nng. Cho X li chm quanc brm mu vng ( bnh1) v nc hiro sunfua ( bnh 2), hin tng quan st c cc bnh 1 v bnh 2 tng ng l

A. (1) dung dch khng i mu ; (2) c kh thot ra mi trng thi.B. (1) dung dch mt mu ; (2) c kt ta mu vng.C. (1) dung dch mt mu ; (2) khng c hin tng g.D. (1) dung dch khng i mu ; (2) c kt ta mu vng.

Cu 14. Hai hirocacbon X, Y c cng cng thc phn t C4H8. Khi phn ng vi brom t X thu c mt dn xut 1,2 ibrom 2-metyl propan ; t Y thu c mt dn xut 2,3 i brom butan . Tn ca X v Y l

A. 2-metyl propen v buten-2. B. 2-metyl propen v metyl xiclo propanC. buten-1 v buten-2. D. buten-2 v xiclo butan.

Cu 15. Hn hp kh X gm hai hirocacbon mch h, k tip nhau trong dy ng ng. t chy hon ton 4,48 lt (ktc)kh X thu c 10,752 lt kh CO2 (ktc) v 8,64 gam H2O.Cng thc ca hai hirocacbon v phn trm th tch ca chngtrong X tng ng l

A. C2H4 (60 %) v C3H6 (40 %). B. C3H6 (60 %) v C4H8 (40 %).C. C2H4 (40 %) v C3H6 (60 %). D. C3H6 (40 %) v C4H8 (60 %).

Cu 16. un nng dung dch mantozc axit v clm xc tc, thu c dung dch chaA. glucoz. B. fructoz. C. sacaroz. D. gluczv fructoz.

Cu 17. Cho cc cht sau: (1) Cu(OH)2, (2) Ag2O/NH3, (3) H2/Ni, t0, (4) H2SO4 long nng. Dung dch mantoztc dng

c vi cc chtA. (2), (3), (4). B. (2), (4). C. (1), (2), (4). D. (3), (4).

Cu 18. Ngi ta sn xut xenluloztrinitrat t xenlulozv axit nitric ( s hao ht trong sn xut l 12 %). Khi lng

xenlulozcn dng sn xut ra 1 tn xenluloztrinitrat lA. 609,83 kg. B. 619,83 kg. C. 629,83 kg. D. 639,83 kg.

Cu 19. T s phn ng : C6H6XY 2,4,6 tribrom anilin. Cht X v Y lA. clobenzen v anilin. B. nitrobenzen v phenol.C. nitrobenzen v anilin. D. clobenzen v phenol.

Cu 20. t chy hon ton 8,9 gam hp cht hu cE thu c 13,2 gam CO2, 6,3 gam H2O v 1,12 lt N2 (ktc). T khihi ca E so vi hiro bng 44,5. Khi E phn ng vi dung dch NaOH un nng, sn phm thu c c metanol. Cng thccu to ca E l

A. CH3COOCH2NH2. B. H2NCH2COOCH3.C. CH3CH(NH2)COOCH3 D. H2NCH2CH2COOCH3

Cu 21. Cho 1,47 gam -aminoaxit Y tc dng vi NaOH d to ra 1,91 gam mui natri. Mt khc, 1,47 gam Y tc dngvi HCl d to ra 1,835 gam mui clorua.Cng thc cu to ca Y l A. H2NCH2COOH. B. CH3CH(NH2)COOH.

C. CH3(CH2)4CH(NH2)COOH. D. HOOCCH2CH2CH(NH2)COOH.Cu 22. Trong cc cht sau: CH3-CH=CH2, CH2(OH)CH2(OH), NH2-CH2-COOH, CH2=CHCl, nhng cht tham gia cphn ng trng ngng gm

A. HO-CH2-CH2-OH v NH2-CH2-COOH. B. HO-CH2-CH2-OH v CH3-CH=CH2.C. CH2=CHCl v CH3-CH=CH2. D. CH3-CH=CH2 v NH2-CH2-COOH.

Cu 23. Trong s cc polime sau: si bng (1), ttm (2), len (3), tvisco (4), tenang (5), taxetat (6), tnilon-6,6 (7). Tthuc loi poliamit gmA.(2), (3), (4), (6). B. (1), (2), (5). C. (1), (4), (6). D. (2), (3), (5), (7).Cu 24. Tch nc t ru (CH3)2CHCH(OH)CH3 trong iu kin thch hp thu c anken. Sn phm tri qui tc Zai xepl sn phm no sau yA. 2-metylbuten-1. B. 2-metylbuten-2. C. 3-metylbuten-1. D. penten-1.Cu 25. Cho 2,325 gam ru X tc dng ht vi Na thu c 0,84 lt kh H2 (ktc).Bit MX 92. Ru X l

A. etylen glycol. B. glyxerin. C. etanol. D. propanol.Cu 26. Trong cc ng phn cha vng benzen c cng thc C7H8O sng phn phn ng c c vi Na v NaOH l A.2. B. 3. C. 4. D. 5.Cu 27. Dn lung kh CO di qua ng s cha 17,1 gam hn hp X gm Fe2O3, Al2O3, MgO n khi phn ng honton c cht rn Y. Ho tan Y trong dung dch NaOH d thy khi lng cht rn Z thu c bng 65,306% khi lngY. Ho tan Z bng lng d dung dch HCl thot ra 2,24 lt kh (ktc). Khi lng cc cht trong Z ln lt l (gam)

A. 5,6g Fe ; 4,0g Mg. B. 2,8g Fe ; 6,8g MgOC. 5,6g Fe ; 4,0g MgO D. 2,8g Fe ; 6,8g Mg

Cu 28. Axit cacboxilic n chc mch hG c cng thc phn t dng CnH2n -2O2. Bit rng3,6 gam cht G phn ng va vi 8 gam brom trong dung dch. Vy cht G l

A. axit acrylic. B. axit metacrilic. C. axit oleic. D. axit linoleic.


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Cu 29. Trung ho dung dch c ho tan 3,8 gam hn hp hai axit cacboxylic no, n chc k tip nhau trong dy ng ngcn dng 150 ml dung dch NaOH 0,5M. Cng thc ca hai axit l

A. HCOOH v CH3COOH. B. CH3COOH v C2H5COOH.C. C2H5COOH v C3H7COOH. D. C3H7COOH v C4H9COOH.

Cu 30. Bn este c CTPT: C3H4O2, C3H6O2, C4H6O2, C4H8O2. Cng thc phn tng vi 2 este khi b thu phn cho ra haicht hu cukhng c kh nng tham gia phn ng trng gng :

A C3H4O2 v C4H8O2. B. C3H4O2 v C4H6O2.C. C3H4O2 v C3H6O2. D. C3H6O2 v C4H8O2.

Cu 31. X phng ho hon ton 0,01 mol este E (c khi lng 8,9 gam) cn dng va lng NaOH c trong 300 mldung dch NaOH 0,1 M thu c mt ru v 9,18 gam mui ca mt axit hu cn chc, mch h, c mch cacbon

khng phn nhnh. Cng thc ca EA. C3H5(OOCC17H35)3. B. C3H5(OOCC17H33)3.C. C3H5(OOCC17H31)3. D. C3H5(OOCC15H31)3.

Cu 32. Ho tan hn hp ng v oxit st t (dng bt) theo t l mol 2 : 1 bng dung dch HCl d, phn ng xong thuc dung dch X v cht rn Y. Cht tan c trong dung dch X gmA. FeCl2 v FeCl3 B. FeCl3 C. FeCl2 D. FeCl2 v CuCl2Cu 33. Ho tan 3,84 gam mui sunfat ca hai kim loi kim X, Y (MX < MY) thuc hai chu k k tip vo nc c dungdch E. Dung dch E phn ng va vi 40 ml dung dch BaCl2 0,75 M. Hai kim loi X v Y tng ng lA. Li v Na. B. Na v K. C. K v Rb. D. Rb v Cs.Cu 34. in phn nng chy a gam mui halogenua ca kim loi M, thu c 1,6 gam M Catot v 0,896 lt kh (ktc) Anot. Mt khc dung dch cha a gam mui halogenua ni trn tc dng vi AgNO3 d thu c 11,48 gam kt ta. Cngthc mui halogenua lA. Canxi florua. B. Magie clorua. C. Canxi clorua. D. Magie bromua.

Cu 35. Trn 200 ml dung dch gm HCl 0,1 mol/l v H2SO4 0,05 mol/l vi 300 ml dung dch Ba(OH)2 nng x mol/l thuc m gam kt ta v 500 ml dung dch c pH = 13,gi tr ca x v m ln lt l

A. x = 0,015 ; m = 2,33. B. x = 0,150 ; m = 2,33.C. x = 0,200 ; m = 3,23. D. x = 0,020 ; m = 3,23.

Cu 36. Ho tan ht hn hp FeS2, FeCO3 bng dung dch HNO3c, nng c dung dch X v 4,48 lt (ktc) hn hp khY c t khi so vi hiro bng 22,75. Hp th ton b kh Y vo 300 ml dung dch NaOH 1 M c dung dch Z. Cc chttan trong Z gmA. NaHCO3, Na2CO3, NaNO3, NaNO2. B. Na2CO3, NaNO3, NaNO2, NaOH.C. NaHCO3, NaNO3, Na2CO3. D. Na2CO3, NaNO3, NaOH.Cu 37. Cho cc dung dch sau:NaHCO3 (X1) ; CuSO4 (X2) ; (NH4)2CO3 (X3) ; NaNO3 (X4) ; MgCl2 (X5) ; KCl (X6).Nhng dung dchkhng to kt ta khi cho Ba vo l:A. X1, X4, X5 B. X1, X4, X6 C. X1, X3, X6 D. X4, X6.Cu 38. Hirocacbon F tc dng vi brom trong iu kin thch hp, thu c ch mt dn xut brom c t khi hi so vihiro bng 75,5. Cht F lA. pentan. B. xiclopentan. C. 2- metylbutan. D. 2,2-i metylpropan.Cu 39. linh ng ca nguyn t H trong nhm OH ca cc cht: ru etylic, axit axetic, axit propionic, axit phenic,axit picric c sp xp theo th t tng dn

A. ru etylic, axit axetic, axit propionic, axit phenic, axit picric.B. ru etylic, axit axetic, axit propionic, axit picric, axit phenic.C. ru etylic, axit phenic, axit propionic, axit axetic, axit picric.D. ru etylic, axit phenic, axit picric, axit axetic, axit propionic.

Cu 40. Hp cht hu cE mch h, ch cha mt loi nhm chc,c cng thc phn t C8H14O4. Cho E tc dng vi dungdch NaOH thu c mt ru duy nht l CH3OH v mt mui natri ca axit hu cF c mch cacbon khng phn nhnh.E c cng thc cu to l

A. CH3OCOCH2CH(CH3)CH2COOCH3. B. CH3OCOCH(CH3)CH(CH3)COOCH3.C. CH

3OCOCH

2C(CH

3)

2COOCH

3. D. CH

3OCOCH

2CH

2CH

2CH

2COOCH

3.

Cu 41. Cht hu cX (cha C, H, N, O) c cng thc phn t trng vi cng thc n gin nht. Trong X, cha 40,45%C, 7,86% H, 15,73% N, cn li l oxi. Khi cho 4,45 gam X tc dng vi NaOH va thu c 4,7 gam mui khan. Cngthc cu to ca X lA. H2N-CH2-CH2-COOH B. CH3-CH(NH2)-COOH

C. H2N-CH2-COO-CH3 D. CH2=CH-COO-NH4Cu 42. Cht hu cX c t khi hi so vi metan bng 4,625. Khi t chy X thu c s mol H2O bng s mol X chy, cn s mol CO2 bng 2 ln s mol nc. X tc dng c vi Na, NaOH v Ag2O trong dung dch NH3 sinh ra Ag.Cng thc cu to ca X lA. HCOOCH2CH3 B. C2H5COOH

C. HOOC-CHO D. HOCH2CH2CHOCu. 43. Hp cht hu cE c cng thc phn t C4H6O2, tho mn iu kin sau:1) cng H2 (xc tc Ni, t

o) theo t l mol 1:1.


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2) phn ng chm vi dung dch NaOH nhit thng, ch phn ng mnh khi un nng.3) sn phm thu c trong phn ng vi dung dch NaOH cho phn ng trng gng.Cng thc cu to ca E l: A. CH3-COO-CH=CH2. B. CH2=CH-CH2-COOH.

C. CH2=CH-O-CH2-CHO. D. CH3-CH=CH-COOH.Cu 44. Trong mt bnh kn dung tch khng i 5 lt cha 12,8g SO2 v 3,2g O2 (c mt t xc tc V2O5) nung nng. Khiphn ng t ti cn bng, phn trm th tch oxi trong bnh cn l 20%. Nng mol SO2 v O2trng thi cn bng tngng lA. 0,03M v 0,02M B. 0,015M v 0,01M C. 0,02M v 0,02M D. 0,02M v 0,01Mti cn bng, nng mol ca cc cht nh sau : [N2 ] = 0,5 mol/l ; [NH3 ] = 0,8 mol/l ; [H2 ] = 0,8 mol/l. Hng s cn bngv nng mol ca N2, H2 ban u tng ng bng

A. 2,5 ; 0,9 ; 2,0 B. 25 ; 1,5 ; 2,0C. 25 ; 0,9 ; 1,0 D. 2,5 ; 0,9 ; 1,0

Cu 46. Thc hin phn ng nhit nhm 13,4 gam hn hp bt nhm v st(III) oxit c hn hp G. Ho tan G trong dungdch NaOH d, thot ra 3,36 lt kh H2 (cc p/ xy ra hon ton, th tch kho ktc). Khi lng st(III) oxit c tronghn hp ban u bng A. 6,8 gam. B. 5,4 gam. C. 12 gam D. 8 gam.Cu 47. C 5 mu kim loi Ba, Mg, Ag, Al, Fe. Ngi ta c th nhn bit c tng kim loi m ch cn dng mt dung dchcha mt ho cht lm thuc th l

A. HCl. B. HNO3. C. NaOH. D. Fe(NO3)3.Cu 48. Pht biu no sau ykhng ng:

A. Mt cht c tnh oxi ho gp mt cht c tnh kh, c th xy ra phn ng oxi ho - kh.B. Mt cht hoc ch c tnh oxi ho hoc ch c tnh kh.C. Phn ng c kim loi tham gia l phn ng oxi ho - kh.D. Phi kim l cht oxi ho trong phn ng vi kim loi v hiro.

Cu 49. Ru X c cng thc phn t CnHmOz ( z n ). X l ru no, mch hth gi tr thch hp ca m v n lA. m = 2n + 2. B. m = 2n + 1. C. m = 2n z. D. m = 2n + z.Cu 50. T cc s phn ng sau :

a) X1 + X2 Ca(OH)2 + H2 b)X3 + X4 CaCO3 + Na2CO3 + H2O

b) X3 + X5 Fe(OH)3 + NaCl + CO2 d)X6 + X7 + X2 Al(OH)3 + NH3 + NaClCc cht thch hp vi X2, X3, X4, X5 tng ng l:A. Ca ; NaOH ; Ca(HCO3)2 ; FeCl3 B. H2O ; Ca(HCO3)2 ; NaOH ; FeCl3C. H2O ; NaHCO3 ; Ca(OH)2 ; FeCl3 D. Ca ; Ca(OH)2 ; NaHCO3 ; FeCl3

p n

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

C C D B A B C C D A C D B A A A C21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37D A D C A B C A A D A D A C B B C41 42 43 44 45 46 47 48 49 50 18 19 20 38 39 40D C A D A D D B A C B C B D C D

S : 03

Cu 1 t chy hon ton m gam hn hp gm C2H4, C3H6, C4H8 thu c 1,68 lt kh CO2 (ktc). Gi tr ca m bngA. 1,25g B. 1,15g C. 1,05g D. 0,95gCu 2 Khi lng axit CH3COOH cn ly tc dng va vi 10,65 gam C3H7OH (phn ng c H2SO4 xc tc, unnng, gi thit hiu sut phn ng 100% ) lA. 9,90g B. 10,12g C.12,65g D. 10,65gCu 3 Cho 5,7 gam hn hp bt P gm Mg, Al, Zn, Cu tc dng hon ton vi oxi d thu c hn hp rn Q c khilng l 8,1 gam. Th tch ti thiu dung dch HCl 1M cn dng ho tan hon ton Q lA. 180 ml B. 270 ml C. 300 ml D. 360 mlCu. 4 Cho mt lng bt CaCO3 tc dng hon ton vi dung dch HCl 32,85% sau phn ng thu c dung dch X trong nng HCl cn li l 24,20%. Nng % CaCl2 trong dung dch sau phn ngA.10,35% B.12,35% C.11,35% D. 8,54%Cu 5 Hn hp Z gm 2 axit cacboxylic no, n chc k tip nhau trong dy ng ng. t chy hon ton hn hp Z thuc khi lng H2O t hn khi lng CO2 l 5,46 gam. Nu ly 1/2 lng hn hp Z trn cho tc dng vi dung dchNaOH va th sau phn ng thu c 3,9 gam hn hp mui khan. Cng thc 2 axit trong Z l

A. CH3COOH v C2H5COOH B. C2H3COOH v C3H5COOH


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C. C2H5COOH v C3H7COOH D. HCOOH v CH3COOHCu 6 Cho mt lng ru E i vo bnh ng Na (d), sau khi phn ng xy ra hon ton thy khi lng bnh tng thm6,3 gam v c 1,568 lt kh H2 (ktc) thot ra. Cng thc ru E lA. C3H5(OH)3 B. C3H7OH C. C2H4(OH)2 D. C2H5OHCu 7 t chy hon ton m gam mt ru no X thu c cng m gam H2O. Bit khi lng phn t ca X nh hn 100vC. Sng phn cu to ca ru X lA. 4 B. 6 C. 5 D. 3Cu 8 Cho cc s phn ng sau :a) 6X xt Y b) X + O2

xt Z c) E + H2Oxt G

d) E + Zxt

F e) F + H2OH+

Z + G.iu khng nh no sau y ngA. Cc cht X, Y, Z, E, F, G u c cng s C trong phn t.B. Ch c X v E l hirocacbonC. Cc cht X, Y, Z, E, F, G u phn ng c vi dung dch Ag2O trong NH3.D. Cc cht X, Y, Z, E, F, G u c nhm chc CHO trong phn t.

Cu 9 Ho tan hn hp X gm Cu v Fe2O3 trong 400 ml dung dch HCl a mol/lt c dung dch Y v cn li 1 gam ngkhng tan. Nhng thanh Mg vo dung dch Y, sau khi phn ng xong, nhc thanh Mg ra thy khi lng tng 4 gam so viban u v c 1,12 lt kh H2 (ktc) bay ra.(Gi thit ton b lng kim loi thot ra u bm vo thanh Mg). Khi lng caCu trong X v gi tr ca a lA. 1,0g v a = 1M B. 4,2g v a = 1M. C. 3,2g v 2M. D. 4,8g v 2M.Cu 10. Ho tan 14,2 gam hn hp X gm MgCO3 v mt mui cacbonat ca kim loi M vo mt lng va axit HCl7,3% thu c dung dch Y v 3,36 lt kh CO2 (ktc). Nng MgCl2 trong Y l 6,028%. Cho dung dch NaOH d vo

dung dch Y, lc ly kt ta em nung ngoi khng khn khi lng khng i th thu c m gam chy rn. Gi tr ca mbngA. 12,0g B. 10,4g C. 8,0g D. 7,6g

D.Phi kim lun l cht oxi ho trong phn ng oxi ho - kh.Cu 11 Ho tan hon ton 5,94g Al vo dung dch NaOH d thu c kh X. Cho 1,896g KMnO4 tc dng ht vi axitHCl c kh Y. Nhit phn hon ton 12,25g KClO3 c xc tc thu c kh Z. Cho ton b 3 kh Z, Y, Z trn vo bnh knri t chy phn ng xy ra hon ton, sau a bnh v nhit thng, thu c dung dch T. Nng phn trmcht tan trong T l A. 18,85% B. 28,85% C. 24,24% D. 31,65%Cu 12 Sng phn mch hc cng thc phn t C4H9NO2 khi phn ng vi dung dch NaOH iu kin thng to raamoniac lA. 2 B. 3 C. 4 D. 5Cu 13 t chy hon ton 1,1g hn hp F gm metan, etin, propen thu c 3,52g CO2. Mt khc, khi cho 448 ml hn

hp kh F (ktc) i qua dung dch nc brom d th ch c 4g brom phn ng. Phn trm th tch metan, etin, propen tronghn hp F ln lt l (%) :A. 30 ; 40 ; 30 B. 25 ; 50 ; 25 C. 50 ; 25 ; 25 D. 25 ; 25 ; 50Cu 14 Ho tan hon ton m gam kim loi M bng dung dch HCl d thu c V lit H2 (ktc). Mt khc ho tan hon tonm gam kim loi M bng dung dch HNO3 long, d thu c mui nitrat ca M, H2O v cng V lit kh NO (ktc) duy nht.Bit khi lng mui nitrat to thnh gp 1,905 ln khi lng mui clorua. Kim loi M lA. Mg B. Al C. Cu D. FeCu 15. C 50 ml dung dch cha hn hp KOH 0,05M v Ba(OH)2 0,025M ngi ta thm V ml dung dch HCl 0,16M vo50 ml dung dch trn thu c dung dch mi c pH = 2. Vy gi tr ca V lA. 36,67 ml B. 30,33 ml C. 40,45 ml D. 45,67 ml.Cu 16. t chy hon ton 1,35 gam mt ru no Y c mch cacbon khng phn nhnh ri cho ton b sn phm chy hpth ht vo bnh ng lng d dung dch Ba(OH)2 thy khi lng bnh tng thm a gam v c 11,82 gam kt ta trng.Cng thc phn t ru Y lA. C4H9OH B. C3H6(OH)2 C. C4H8(OH)2 D. C3H5(OH)3Cu 17. T cc s phn ng sau :a)X1 + X2 Ca(OH)2 + H2 b) X3 + X4 CaCO3 + Na2CO3 + H2O

c) X3 + X5 Fe(OH)3 + NaCl + CO2 d) X6 + X7 + X2 Al(OH)3 + NH3 + NaClCc cht thch hp vi X2, X3, X4, X5 tng ng lA. Ca ; NaOH ; Ca(HCO3)2 ; FeCl3 B. H2O ; Ca(HCO3)2 ; NaOH ; FeCl3C. H2O ; NaHCO3 ; Ca(OH)2 ; FeCl3 D. Ca ; Ca(OH)2 ; NaHCO3 ; FeCl3Cu 18. Mt hn hp gm 2 este n chc X, Y c khi lng 32,6 gam. Chia hn hp trn thnh 2 phn u nhau. Xphng ho hon ton phn 1 bng mt lng va 125 ml dung dch NaOH 2M un nng, thu c 1 ru v 2 mui.Cho


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phn 2 tc dng vi lng d dung dch Ag2O trong NH3 thu c 43,2 gam Ag. Khi lng v cng thc ca cc este X, Yc trong hn hp ban u ln lt l:A.24gamHCOOCH3 v 8,6 gamC2H3COOCH3 B. 24gam HCOOCH3 v 8,6 gam C2H5COOCH3C.12 gamHCOOCH3v20,6gamC2H3COOCH3 D.12gam HCOOCH3 v 20,6 gam CH3COOCH3Cu 19. iu khng nh no sau y ng ?A. Cacbon ch c tnh kh. B. Cacbon ioxit khng th b oxi ho.C. Cacbon oxit l cht kh khng tht chy. D. Khng tht chy kim cng.Cu 20 Pht biu no sau y lun ng:A.Mt cht c tnh oxi ho gp mt cht c tnh kh, nht thit xy ra phn ng oxi ho - kh.B.Mt cht hoc ch c tnh oxi ho hoc ch c tnh kh.

C.Phn ng c kim loi tham gia l phn ng oxi ho - kh.D.Phi kim lun l cht oxi ho trong phn ng oxi ho - kh.Cu 21. X v Y l 2 nguyn t nm trong 2 phn nhm chnh k tip nhau trong bng tun hon dng ngn, X thuc nhmVI. Tng s ht proton trong 2 ht nhn ca X v Y l 25 ( ZX < ZY ) . Bit n cht X tc dng c vi n cht Y. VyX, Y tng ng lA. Ne v P. B. O v Cl C. F v S D. N v Ar

Cu 22. Cho phn ng N2 + 3H2,ot xt 2NH3 . Khi cn bng c thit lp, ta c nng cn bng ca cc cht nh

sau : [N2] = 3 mol/l, [H2] = 9 mol/l, [NH3] = 4 mol/l. Vy nng ban u ca N2 v H2 lA. [N2] = 7 mol/l, [H2] = 12 mol/l B. [N2] = 5 mol/l, [H2] = 15 mol/lC. [N2] = 5 mol/l, [H2] = 12 mol/l D. [N2] = 9 mol/l, [H2] = 15 mol/l

Cu 23. Cho 200 ml dung dch X cha cc ion NH4+ , K+ , SO4

2- , Cl- vi nng tng ng l 0,5M , 0,1M , 0,25M , 0,1M.Bit rng dung dch X c iu ch bng cch ho tan 2 mui vo nc. Khi lng ca 2 mui c ly l

A. 6,6g (NH4)2SO4 v 7,45g KCl. B. 6,6g (NH4)2SO4 v 1,49g KCl.C. 8,7g K2SO4 v 5,35g NH4Cl. D. 3,48g K2SO4 v 1,07g NH4Cl.Cu 24. Nung 44 gam hn hp X gm Cu v Cu(NO3)2 trong bnh kn cho n khi cc phn ng xy ra hon ton thu ccht rn Y. Cht rn Y phn ng va vi 600 ml dung dch H2SO4 0,5 M (Y tan ht). Khi lng Cu v Cu(NO3)2 ctrong hn hp X l ( Cu = 64, N = 14, O = 16, S = 32, H = 1) : A. 6,4 g Cu; 37,6 g Cu(NO3)2 B. 9,6 g Cu; 34,4 gCu(NO3)2

C. 8,8 g Cu; 35,2 g Cu(NO3)2 D. 12,4 g Cu; 31,6 g Cu(NO3)2Cu 25. t chy 1,12 lit (ktc) hn hp hai hirocacbon X,Y ng ng lin tip (MX < MY), ta thu c 2,88 gam nc v4,84 gam CO2. Thnh phn % theo th tch ca hai hirocacbon X,Y trong hn hp l: A. 50; 50 B. 20; 80 C.33,33 ; 66,67 D. 80 , 20.Cu 26. tch butin-1 ra khi hn hp vi butin-2 , nnA. dng phng php chng ct phn on. B. dng dung dch brom.C. dng dung dch AgNO3/NH3, sau dng dung dch HCl. D. dng dung dch KMnO4.

Cu 27. Hirocacbon X tc dng vi brom trong iu kin thch hp, thu c ch mt dn xut brom ct khi hi so vi hiro bng 75,5 ( Br = 80). Cht X l

A. pentan. B. xiclopentan. C. 2- metylbutan. D. 2,2-imetylpropan.Cu 28. Dn hai lung kh clo i qua hai dung dch KOH: dung dch I long v ngui, dung dch II m c, un nng ti80oC. Nu lng mui KCl sinh ra trong hai dung dch bng nhau th t l th tch kh clo i qua hai dung dch KOH ( I ) v (II ) l : (Cho : K = 39, Cl = 35,5)A. 5/6 B. 6/3 C. 10/3 D. 5/3Cu 29. Hai bnh A, B c th tch bng nhau. Bnh A cha 1 mol kh Cl2, bnh B cha 1 mol kh O2. Cho vo mi bnh 2,4gam bt kim loi M c ho tr khng i. un nng 2 bnh cc phn ng xy ra hon ton ri a 2 bnh v nhit banu, nhn thy p sut kh trong 2 bnh PA : PB = 1,8 : 1,9. Kim loi M lA. Zn B. Ca C. Mg D. BaCu 30. Cho cc cht Cu, FeO, Fe3O4, C, FeCO3, Fe(OH)2, Fe tc dng ln lt vi H2SO4c, nng u gii phng kh

SO2. Nhm cc cht m khi tc dng vi 1 mol H2SO4u gii phng ra 1/ 4 mol SO2 gmA. Cu, FeO, Fe3O4 B. FeO, Fe3O4, C. Fe3O4, FeCO3, Fe D. FeO, FeCO3, Fe(OH)2Cu 31. Cc kim loi phn nhm chnh nhm I, II khc cc kim loi cn li ch

A. ch c chng l kim loi nh.B. chng u phn ng vi nc to dung dch kim.C. chng c ho tr khng i khi tham gia phn ng ho hc.D. kh nng dn in ca chng tt hn nhm.

Cu 32. C V1 ml dung dch H2SO4 pH = 2. Trn thm V2 ml H2O vo dung dch trn c (V1+V2) ml dung dch mi c pH= 3. Vy t l V1 : V2 c gi tr bng

A. 1 : 3 B. 1 : 5 C. 1 : 9 D. 1 : 10


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Cu 33. Ho tan 17 gam hn hp NaOH, KOH, Ca(OH)2 vo nc c 500 gam dung dch X. trung ho 50 gam dungdch X cn dng 40 gam dung dch HCl 3,65%. C cn dung dch sau khi trung ho thu c khi lng mui khan lA. 3,16 gam. B. 2,44 gam. C. 1,58 gam. D. 1,22 gam.Cu 34. in phn dung dch cha hn hp 2 mui CuCl2 v Cu(NO3)3 mt thi gian, anot ca bnh in phn thot ra 448ml hn hp kh (ktc) c t khi so vi H2 bng 25,75 v c m gam kim loi Cu bm trn catot. Gi tr ca m bngA. 0,64 gam B. 1,28 gam C. 1,92 gam. D. 2,56 gamCu 35. Hp cht hu cn chc X cha C, H, O. Trong phn trm khi lng ca C, H tng ng l 55,81 % v 6,98%. Y l ng phn ca X v hu nh khng tan trong nc. C X v Y u c ng phn cis trans. Cng thc cu to caX v Y l cng thc no sau y:

A. CH2=CHCOOH v HCOOCH=CH2.

B. B. HCOOCH=CHCH3 v CH3CH=CHCOOHC.CH3CH=CHCOOH v HCOOCH=CHCH3D. CH2=CHCH2COOH v CH3COOCH=CH2

Cu 36. Ru no X l ng ng ca etylen glicol, c phn trm khi lng oxi bng 35,55%. X ho tan c Cu(OH)2 todung dch mu xanh lam. Sng phn cu to tho mn tnh cht trn ca X lA. 2 B. 3 C.4 D.5Cu 37. t chy hon ton 1,3g cht hu cX thu c 2,24 lit CO2 (ktc) v 0,9g H2O. Bit X l cht lng v l monomedng trong tng hp cao su, iu ch polime khc X lA. Axetilen B. Butaien C. Isopren D. StirenCu 38. Trung ho 0,1 mol amino axit X cn 200g dung dch NaOH 4%. C cn dung dch thu c 16,3gam mui khan.Cng thc phn t ca X l

A. H2NCH2COOH B.H2NCH(COOH)2C. H2NCH2CH2COOH D. H2NCH2CH(COOH)2

Cu 39. X l cht lng khng mu, khng lm i mu phenolphtalein. X tc dng c vi dung dch Na2CO3 v dung dchAgNO3/NH3. Vy X lA. HCOOH B. HCOOCH3 C. HCHO D. CH3COOHCu 40. Cho m gam hn hp 2 amino axit (trong phn t ch cha 1 nhm amino v 1 nhm cacboxyl) tc dng vi 110 mldung dch HCl 2M c dung dch X. phn ng ht vi cc cht trong X cn dng 200 gam dung dch NaOH 8,4% cdung dch Y. C cn Y c 34,37 gam cht rn khan. Gi tr ca m lA. 15,1 gam. B. 16,1 gam. C. 17,1 gam. D. 18,1 gam.Cu 41. Cht hu cX c t khi hi so vi metan bng 4,625. Khi t chy X thu c s mol H2O bng s mol X chy, cn s mol CO2 bng 2 ln s mol nc. X tc dng c vi Na, NaOH v Ag2O trong dung dch NH3 sinh ra Ag.Cng thc cu to ca X l A. HCOOC2H5 B. C2H5COOH C. HOOC-CHO D. HOCH2CH2CHOCu 42. phn bit ru bc 1 vi ru bc 2 ngi ta ln lt dng ho cht sau

A. CuO(to) ; Ag2O/NH3 B. CH3COOH ; NaOHC. H2SO4c (170

oC) D. O2 (men gim)Cu 43. im ging nhau khi sc kh CO2 ln lt vo cc dung dch nc vi trong (I), natri phenolat (II), natri aluminat(III) ; sc kh ozon vo dung dch KI (IV) ; sc kh sunfurvo dung dch H2S (V) l hin tng dung dch b vn c,nhng bn cht ca cc phn ng khc nhau nh sau :

A. (II), (III) khc vi (I), (IV), (V) B. (I), (II), (III) khc vi (IV), (V)C. (I), (II), khc vi (III), (IV), (V) D. (III), (IV) khc vi (I), (II), (V)

Cu 44. Cho H2SO4c vo saccaroziu kin thng thu c mt cht kh bay ra c kh nng lm mt mu dung dchthuc tm .Cht l :A. Hi H2SO4 . B. Kh CO2. C. Kh SO2 . D. Kh H2SCu 45. Trong cc cht: glucoz, fructoz, saccaroz, mantozth nhng chtkhng c kh nng tham gia phn ng trnggng l:

A. Glucozv saccaroz. B. Glucozv mantoz.C. Saccarozv fructoz. D. Saccarozv mantoz.

Cu 46. Khi thu phn du thc vt xy ra phn ng mt chiu, ngoi glyxerin ta thu c ch yu :A. Axit no. B. Axit khng no . C. Mui ca axit no D. Mui ca axit khng no.Cu 47. Xc tc dng trong phn ng este ho ca amino axit l :

A. H2SO4 long. B. H2SO4c. C. HCl bo ho. D. HCl long .Cu 48. Cc nhm cht sau y, nhm cht no thuc loi ttng hp ?

A. Tnilon , tcapron , tlapxan. B. Tvissco , taxetat .C. Ttm , len , bng . D. Tvissco , tnilon , tcapron.

Cu 49. Oxi ho 4 gam ru n chc Z bng O2 (xt Cu) thu c 5,6 gam hn hp kh v hi X. Tn ca ru Z v hiusut phn ng oxi ho l

A. C2H5OH ; 60% B. CH3OH ; 80% C. C3H7OH ; 40% D. C4H9OH ; 90%.


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Cu 50. Ru bc hai X c cng thc phn t C6H14O. un X vi H2SO4c 170oC ch to ra 1 anken duy nht, tn X l

A. 2,3-imetyl butanol-2. B. 2,3-imetyl butanol-1.C. 2-metyl pentanol-3. D. 3,3-imetyl butanol-2.

p n

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17C D C A A D B C B C B C B D A C C

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37C B B A D C D D C D C C B C C B D41 42 43 44 45 46 47 48 49 50 18 19 20 38 39 40C A B C C D A A B D A B C B A C

Cu 1.Trong cc kim loi Cu, Al, Fe, Ag, Au. dn in ca kim loi c xp theo th tA. Au, Al, Fe, Cu, Ag. B. Au, Ag, Al, Cu, Fe.C. Ag, Cu, Au, Al, Fe. D Al, Ag, Au, Cu, Fe

Cu 2.Dng phng php in phn nng chy iu chcA. tt c cc kim loi vi tinh khit cao. B. cc kim loi hot ng trung bnh v yu.

C. ch cc kim loi hot ng mnh. D. ch cc kim loi hot ng trung bnh.Cu 3. loi b tp cht km, ch, ng c ln trong bc (dng bt) m khng lm thay i khi lng bc ngi ta dngmt lng d dung dch A. AgNO3. B. Pb(NO3)2. C. Cu(NO3)2. D. Fe(NO3)3.Cu 4. Ngi ta iu ch Ba t dung dch BaCl2 bng cchA.in phn dung dch BaCl2. B. C cn dung dch v in phn nng chy .C. dng kim loi K y Ba ra khi dung dch D. c cn dung dch v nhit phn BaCl2Cu 5. Trong mt cc nc c ho tan a mol Ca(HCO3)2 v b mol Mg(HCO3)2. kh cng ca nc trong cc cndng V lt nc vi trong, nng p mol/lit. Biu thc lin h gia V vi a, b, p lA. V = (a + b)/p. B. V = 2(a + b)/p. C. V = (a + b)/2p. D. V = (a + b) p.Cu 6. C 5 cht bt mu trng NaCl, Na2CO3, CaCO3, Na2SO4, BaSO4ng trong cc l ring bit khng ghi nhn. phn bit tng cht ch cn dngA. dung dich MgCl2. B. nc v kh CO2. C. axit H2SO4 long D. dung dch BaCl2.Cu 7. Cc kim loi phn nhm chnh nhm II tan trong nc to dung dch kim gm

A. Be, Mg, Ca. B. Be, Ca, Ba. C. Ca, Sr, Ba. D. Ca, Mg, Ba.Cu 8. Nhm khng tan trong nc vA. nhm khng khc nc nhit thng. B. nhm l kim loi lng tnh.C. trn b mt nhm lun c lp nhm oxit bo v. D. mt l do khc.Cu 9. Nguyn liu sn xut nhm l qung boxit Al2O3.nH2O, thng c ln tp cht Fe2O3 v SiO2. lm sch nguynliu, ho cht cn dng l

A. dung dch NaOH c. B. dung dch NaOH long.C. dung dch HCl v kh CO2. D. dung dch NaOH c v kh CO2.

Cu 10. Cc dung dch FeSO4 (1), Fe2(SO4)3 (2), Fe(NO3)3 (3), Fe(NO3)2 (4) c axit ho bng H2SO4 long. Dung dchthuc tmkhng b mt mu trong nhm dung dch no sau y :A. (2) v (3) B. (3) v (4). C. (2)v (4). D. (1) v (2)Cu 11. 8,4 gam bt st trong khng kh sau mt thi gian thu c m gam hn hp E gm 4 cht. Ho tan ht hn hp Ebng dung dch HNO3 long, d thu c 1,12 lit kh NO duy nht (ktc). Gi tr ca m

A. 9,8 gam. B. 15,6 gam. C. 10,8 gam. D. 10,08 gam.Cu 12. Cho t t dung dch NH3 vo dung dch ZnSO4 cho ti d NH3 thyA. khng c hin tng g xy ra. B. xut hin kt ta v tan ngay.C. xut hin kt ta trng khng tan. D. c kt ta trng tng dn, sau li tan ra.Cu 13. Kh X khng mu, mi xc, c iu ch bng phn ng ca ng vi axit sunfuric c, nng. Cho X li chm quanc brm mu vng ( bnh1) v nc hiro sunfua ( bnh 2), hin tng quan st c cc bnh 1 v bnh 2 tng ng l

A. (1) dung dch khng i mu ; (2) c kh thot ra mi trng thi.B. (1) dung dch mt mu ; (2) c kt ta mu vng.C. (1) dung dch mt mu ; (2) khng c hin tng g.D. (1) dung dch khng i mu ; (2) c kt ta mu vng.

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Cu 14. Hai hirocacbon X, Y c cng cng thc phn t C4H8. Khi phn ng vi brom t X thu c mt dn xut 1,2 ibrom 2-metyl propan ; t Y thu c mt dn xut 2,3 i brom butan . Tn ca X v Y l

A. 2-metyl propen v buten-2. B. 2-metyl propen v metyl xiclo propanC. buten-1 v buten-2. D. buten-2 v xiclo butan.

Cu 15. Hn hp kh X gm hai hirocacbon mch h, k tip nhau trong dy ng ng. t chy hon ton 4,48 lt (ktc)kh X thu c 10,752 lt kh CO2 (ktc) v 8,64 gam H2O.Cng thc ca hai hirocacbon v phn trm th tch ca chngtrong X tng ng l

A. C2H4 (60 %) v C3H6 (40 %). B. C3H6 (60 %) v C4H8 (40 %).C. C2H4 (40 %) v C3H6 (60 %). D. C3H6 (40 %) v C4H8 (60 %).

Cu 16. un nng dung dch mantozc axit v clm xc tc, thu c dung dch cha

A. glucoz. B. fructoz. C. sacaroz. D. gluczv fructoz.Cu 17. Cho cc cht sau: (1) Cu(OH)2, (2) Ag2O/NH3, (3) H2/Ni, t

0, (4) H2SO4 long nng. Dung dch mantoztc dngc vi cc cht

A. (2), (3), (4). B. (2), (4). C. (1), (2), (4). D. (3), (4).Cu 18. Ngi ta sn xut xenluloztrinitrat t xenlulozv axit nitric ( s hao ht trong sn xut l 12 %). Khi lngxenlulozcn dng sn xut ra 1 tn xenluloztrinitrat l

A. 609,83 kg. B. 619,83 kg. C. 629,83 kg. D. 639,83 kg.Cu 19. T s phn ng : C6H6XY 2,4,6 tribrom anilin. Cht X v Y l

A. clobenzen v anilin. B. nitrobenzen v phenol.C. nitrobenzen v anilin. D. clobenzen v phenol.

Cu 20. t chy hon ton 8,9 gam hp cht hu cE thu c 13,2 gam CO2, 6,3 gam H2O v 1,12 lt N2 (ktc). T khihi ca E so vi hiro bng 44,5. Khi E phn ng vi dung dch NaOH un nng, sn phm thu c c metanol. Cng thccu to ca E l

A. CH3COOCH2NH2. B. H2NCH2COOCH3.C. CH3CH(NH2)COOCH3 D. H2NCH2CH2COOCH3

Cu 21. Cho 1,47 gam -aminoaxit Y tc dng vi NaOH d to ra 1,91 gam mui natri. Mt khc, 1,47 gam Y tc dngvi HCl d to ra 1,835 gam mui clorua.Cng thc cu to ca Y l A. H2NCH2COOH. B. CH3CH(NH2)COOH.

C. CH3(CH2)4CH(NH2)COOH. D. HOOCCH2CH2CH(NH2)COOH.Cu 22. Trong cc cht sau: CH3-CH=CH2, CH2(OH)CH2(OH), NH2-CH2-COOH, CH2=CHCl, nhng cht tham gia cphn ng trng ngng gm

A. HO-CH2-CH2-OH v NH2-CH2-COOH. B. HO-CH2-CH2-OH v CH3-CH=CH2.C. CH2=CHCl v CH3-CH=CH2. D. CH3-CH=CH2 v NH2-CH2-COOH.

Cu 23. Trong s cc polime sau: si bng (1), ttm (2), len (3), tvisco (4), tenang (5), taxetat (6), tnilon-6,6 (7). Tthuc loi poliamit gmA.(2), (3), (4), (6). B. (1), (2), (5). C. (1), (4), (6). D. (2), (3), (5), (7).Cu 24. Tch nc t ru (CH3)2CHCH(OH)CH3 trong iu kin thch hp thu c anken. Sn phm tri qui tc Zai xepl sn phm no sau yA. 2-metylbuten-1. B. 2-metylbuten-2. C. 3-metylbuten-1. D. penten-1.Cu 25. Cho 2,325 gam ru X tc dng ht vi Na thu c 0,84 lt kh H2 (ktc).Bit MX 92. Ru X lA. etylen glycol. B. glyxerin. C. etanol. D. propanol.Cu 26. Trong cc ng phn cha vng benzen c cng thc C7H8O sng phn phn ng c c vi Na v NaOH l A.2. B. 3. C. 4. D. 5.Cu 27. Dn lung kh CO di qua ng s cha 17,1 gam hn hp X gm Fe2O3, Al2O3, MgO n khi phn ng honton c cht rn Y. Ho tan Y trong dung dch NaOH d thy khi lng cht rn Z thu c bng 65,306% khi lngY. Ho tan Z bng lng d dung dch HCl thot ra 2,24 lt kh (ktc). Khi lng cc cht trong Z ln lt l (gam)

A. 5,6g Fe ; 4,0g Mg. B. 2,8g Fe ; 6,8g MgOC. 5,6g Fe ; 4,0g MgO D. 2,8g Fe ; 6,8g Mg

Cu 28. Axit cacboxilic n chc mch hG c cng thc phn t dng CnH2n -2O2. Bit rng3,6 gam cht G phn ng va vi 8 gam brom trong dung dch. Vy cht G lA. axit acrylic. B. axit metacrilic. C. axit oleic. D. axit linoleic.

Cu 29. Trung ho dung dch c ho tan 3,8 gam hn hp hai axit cacboxylic no, n chc k tip nhau trong dy ng ngcn dng 150 ml dung dch NaOH 0,5M. Cng thc ca hai axit l

A. HCOOH v CH3COOH. B. CH3COOH v C2H5COOH.C. C2H5COOH v C3H7COOH. D. C3H7COOH v C4H9COOH.

Cu 30. Bn este c CTPT: C3H4O2, C3H6O2, C4H6O2, C4H8O2. Cng thc phn tng vi 2 este khi b thu phn cho ra haicht hu cukhng c kh nng tham gia phn ng trng gng :

A C3H4O2 v C4H8O2. B. C3H4O2 v C4H6O2.C. C3H4O2 v C3H6O2. D. C3H6O2 v C4H8O2.


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Cu 31. X phng ho hon ton 0,01 mol este E (c khi lng 8,9 gam) cn dng va lng NaOH c trong 300 mldung dch NaOH 0,1 M thu c mt ru v 9,18 gam mui ca mt axit hu cn chc, mch h, c mch cacbonkhng phn nhnh. Cng thc ca E

A. C3H5(OOCC17H35)3. B. C3H5(OOCC17H33)3.C. C3H5(OOCC17H31)3. D. C3H5(OOCC15H31)3.

Cu 32. Ho tan hn hp ng v oxit st t (dng bt) theo t l mol 2 : 1 bng dung dch HCl d, phn ng xong thuc dung dch X v cht rn Y. Cht tan c trong dung dch X gmA. FeCl2 v FeCl3 B. FeCl3 C. FeCl2 D. FeCl2 v CuCl2Cu 33. Ho tan 3,84 gam mui sunfat ca hai kim loi kim X, Y (MX < MY) thuc hai chu k k tip vo nc c dungdch E. Dung dch E phn ng va vi 40 ml dung dch BaCl2 0,75 M. Hai kim loi X v Y tng ng l

A. Li v Na. B. Na v K. C. K v Rb. D. Rb v Cs.Cu 34. in phn nng chy a gam mui halogenua ca kim loi M, thu c 1,6 gam M Catot v 0,896 lt kh (ktc) Anot. Mt khc dung dch cha a gam mui halogenua ni trn tc dng vi AgNO3 d thu c 11,48 gam kt ta. Cngthc mui halogenua lA. Canxi florua. B. Magie clorua. C. Canxi clorua. D. Magie bromua.Cu 35. Trn 200 ml dung dch gm HCl 0,1 mol/l v H2SO4 0,05 mol/l vi 300 ml dung dch Ba(OH)2 nng x mol/l thuc m gam kt ta v 500 ml dung dch c pH = 13,gi tr ca x v m ln lt l

A. x = 0,015 ; m = 2,33. B. x = 0,150 ; m = 2,33.C. x = 0,200 ; m = 3,23. D. x = 0,020 ; m = 3,23.

Cu 36. Ho tan ht hn hp FeS2, FeCO3 bng dung dch HNO3c, nng c dung dch X v 4,48 lt (ktc) hn hp khY c t khi so vi hiro bng 22,75. Hp th ton b kh Y vo 300 ml dung dch NaOH 1 M c dung dch Z. Cc chttan trong Z gmA. NaHCO3, Na2CO3, NaNO3, NaNO2. B. Na2CO3, NaNO3, NaNO2, NaOH.

C. NaHCO3, NaNO3, Na2CO3. D. Na2CO3, NaNO3, NaOH.Cu 37. Cho cc dung dch sau:NaHCO3 (X1) ; CuSO4 (X2) ; (NH4)2CO3 (X3) ; NaNO3 (X4) ; MgCl2 (X5) ; KCl (X6).Nhng dung dchkhng to kt ta khi cho Ba vo l:A. X1, X4, X5 B. X1, X4, X6 C. X1, X3, X6 D. X4, X6.Cu 38. Hirocacbon F tc dng vi brom trong iu kin thch hp, thu c ch mt dn xut brom c t khi hi so vihiro bng 75,5. Cht F lA. pentan. B. xiclopentan. C. 2- metylbutan. D. 2,2-i metylpropan.Cu 39. linh ng ca nguyn t H trong nhm OH ca cc cht: ru etylic, axit axetic, axit propionic, axit phenic,axit picric c sp xp theo th t tng dn

A. ru etylic, axit axetic, axit propionic, axit phenic, axit picric.B. ru etylic, axit axetic, axit propionic, axit picric, axit phenic.C. ru etylic, axit phenic, axit propionic, axit axetic, axit picric.D. ru etylic, axit phenic, axit picric, axit axetic, axit propionic.

Cu 40. Hp cht hu cE mch h, ch cha mt loi nhm chc,c cng thc phn t C8H14O4. Cho E tc dng vi dungdch NaOH thu c mt ru duy nht l CH3OH v mt mui natri ca axit hu cF c mch cacbon khng phn nhnh.E c cng thc cu to l

A. CH3OCOCH2CH(CH3)CH2COOCH3. B. CH3OCOCH(CH3)CH(CH3)COOCH3.C. CH3OCOCH2C(CH3)2COOCH3. D. CH3OCOCH2CH2CH2CH2COOCH3.

Cu 41. Cht hu cX (cha C, H, N, O) c cng thc phn t trng vi cng thc n gin nht. Trong X, cha 40,45%C, 7,86% H, 15,73% N, cn li l oxi. Khi cho 4,45 gam X tc dng vi NaOH va thu c 4,7 gam mui khan. Cngthc cu to ca X lA. H2N-CH2-CH2-COOH B. CH3-CH(NH2)-COOH

C. H2N-CH2-COO-CH3 D. CH2=CH-COO-NH4Cu 42. Cht hu cX c t khi hi so vi metan bng 4,625. Khi t chy X thu c s mol H2O bng s mol X chy, cn s mol CO2 bng 2 ln s mol nc. X tc dng c vi Na, NaOH v Ag2O trong dung dch NH3 sinh ra Ag.Cng thc cu to ca X lA. HCOOCH2CH3 B. C2H5COOH

C. HOOC-CHO D. HOCH2CH

2CHO

Cu. 43. Hp cht hu cE c cng thc phn t C4H6O2, tho mn iu kin sau:1) cng H2 (xc tc Ni, t

o) theo t l mol 1:1.2) phn ng chm vi dung dch NaOH nhit thng, ch phn ng mnh khi un nng.3) sn phm thu c trong phn ng vi dung dch NaOH cho phn ng trng gng.Cng thc cu to ca E l: A. CH3-COO-CH=CH2. B. CH2=CH-CH2-COOH.

C. CH2=CH-O-CH2-CHO. D. CH3-CH=CH-COOH.Cu 44. Trong mt bnh kn dung tch khng i 5 lt cha 12,8g SO2 v 3,2g O2 (c mt t xc tc V2O5) nung nng. Khiphn ng t ti cn bng, phn trm th tch oxi trong bnh cn l 20%. Nng mol SO2 v O2trng thi cn bng tngng lA. 0,03M v 0,02M B. 0,015M v 0,01M C. 0,02M v 0,02M D. 0,02M v 0,01M


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ti cn bng, nng mol ca cc cht nh sau : [N2 ] = 0,5 mol/l ; [NH3 ] = 0,8 mol/l ; [H2 ] = 0,8 mol/l. Hng s cn bngv nng mol ca N2, H2 ban u tng ng bng

A. 2,5 ; 0,9 ; 2,0 B. 25 ; 1,5 ; 2,0C. 25 ; 0,9 ; 1,0 D. 2,5 ; 0,9 ; 1,0

Cu 46. Thc hin phn ng nhit nhm 13,4 gam hn hp bt nhm v st(III) oxit c hn hp G. Ho tan G trong dungdch NaOH d, thot ra 3,36 lt kh H2 (cc p/ xy ra hon ton, th tch kho ktc). Khi lng st(III) oxit c tronghn hp ban u bng A. 6,8 gam. B. 5,4 gam. C. 12 gam D. 8 gam.Cu 47. C 5 mu kim loi Ba, Mg, Ag, Al, Fe. Ngi ta c th nhn bit c tng kim loi m ch cn dng mt dung dchcha mt ho cht lm thuc th l

A. HCl. B. HNO3. C. NaOH. D. Fe(NO3)3.

Cu 48. Pht biu no sau ykhng ng:E. Mt cht c tnh oxi ho gp mt cht c tnh kh, c th xy ra phn ng oxi ho - kh.F. Mt cht hoc ch c tnh oxi ho hoc ch c tnh kh.G. Phn ng c kim loi tham gia l phn ng oxi ho - kh.H. Phi kim l cht oxi ho trong phn ng vi kim loi v hiro.

Cu 49. Ru X c cng thc phn t CnHmOz ( z n ). X l ru no, mch hth gi tr thch hp ca m v n lA. m = 2n + 2. B. m = 2n + 1. C. m = 2n z. D. m = 2n + z.Cu 50. T cc s phn ng sau :

c) X1 + X2 Ca(OH)2 + H2 b)X3 + X4 CaCO3 + Na2CO3 + H2O

d) X3 + X5 Fe(OH)3 + NaCl + CO2 d)X6 + X7 + X2 Al(OH)3 + NH3 + NaClCc cht thch hp vi X2, X3, X4, X5 tng ng l:A. Ca ; NaOH ; Ca(HCO3)2 ; FeCl3 B. H2O ; Ca(HCO3)2 ; NaOH ; FeCl3

C. H2O ; NaHCO3 ; Ca(OH)2 ; FeCl3 D. Ca ; Ca(OH)2 ; NaHCO3 ; FeCl3

p n

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17C C D B A B C C D A C D B A A A C21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37D A D C A B C A A D A D A C B B C41 42 43 44 45 46 47 48 49 50 18 19 20 38 39 40D C A D A D D B A C B C B D C D

S : 05

Cu 1. Nhm cc phn t, nguyn t v ion c tng s electron bng nhau :A. Na, Al3+, CH4, H2S, NH3, Mg. B. Na

+, Al3+, CH4, H2O, NH3, Mg2+

C. Na, Al3+, CH4, H2S, NH3, HF D. Na, Al3+, SiH4, H2O, NH3, Mg

2+Cu 2. Hai nguyn t X, Y thuc 2 phn nhm chnh lin tip trong bng tun hon. Tng s electron trong 2 nguyn t X, Ybng 19. Phn t hp cht XxYy c tng s proton bng 70. Cng thc phn t hp cht lA. Mg3N2 B. CaC2 C. Al4C3 D. Na2OCu 3. Phn ng este ho gia ru etylic v axit axetic nhit th nghim c hng s cn bng Kcb = 4. Thc hin phnng este ho 1 mol axit axetic v 2 mol ru etylic nhit trn th s mol este thu c lA. 0,155 mol B. 0,55 mol C. 0,645 mol D. 0,845 molCu 4. t chy m gam ng (II) sunfua trong kh oxi d thu c cht rn X c khi lng

bng (m 4,8) g Nung X trong kh NH3 d ti khi lng khng i c cht rn Y. Ho tan Y

trong dung dch HNO3 long d, thu c V lt kh Z (ktc) khng mu, nng hn oxi. Gi tr ca m (gam) v V (lt) lA. 19,2g v 1,12 lit B. 28,8g v 1,68 lit C. 24,0g v 1,68 lit D. 28,8g v 1,12 litCu 5. Cho 4,48 lt kh CO (ktc) i t t qua ng s nung nng ng 23,2 gam Fe3O4. Sau khi dng phn ng, thu ccht rn X v kh Y c t khi so vi hiro bng 18. Ho tan X trong dung dch HNO3 long d thu c V lt kh NO (ktc).Khi lng cht rn X v th tch kh NO thu c lA. 21,6g v 2,24 lit B.20,0g v 3,36 lit C.20,8g v 2,8 lit D.21,6g v 3,36 litCu 6. Trn 250 ml dung dch gm HCl v H2SO4 c pH = 2 vo 250 ml dung d ch Ba(OH)2 c pH = 13 thy c 0,1165 gamkt ta. Nng mol ca HCl v H2SO4 ban u ln lt l

A. 0,003M v 0,002M B. 0,003M v 0,003MC. 0,006M v 0,002M D. 0,006M v 0,003M


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Cu 7. Mt hn hp gm axit no n chc X v ru no n chc Y c khi lng phn t bng nhau. Chia hn hp ra 2phn bng nhau : Phn 1 tc dng vi Na d thu c 0,56 lt H2. t chy hon ton phn 2 sinh ra 2,688 lt kh CO2. Cngthc phn t v phn trm khi lng X, Y trong hn hp l (cc th tch kho ktc)

A. HCOOH 60% ; C2H5OH 40% B. CH3COOH 60% ; C3H7OH 40%C. HCOOH 40% ; C2H5OH 60% D. CH3COOH 40% ; C3H7OH 60%

Cu 8. un nng hn hp 3 ru no n chc X, Y, Z vi H2SO4c 170oC ch thu c 2 anken l ng ng k tip

nhau. Mt khc, khi un nng hn hp 2 trong 3 ru trn vi H2SO4c 140oC th thu c 1,32 gam hn hp 3 ete c s

mol bng nhau. T khi hi ca hn hp ete so vi hiro bng 44. Bit Y, Z c cng s nguyn t C v Y l ru bc1. Cngthc cu to ca X, Y, Z v % khi lng ca X trong hn hpA. X: CH3CH2OH 43,39%; Y: CH3CH2CH2OH ; Z: CH3CHOHCH3

B. X: CH3CH2OH 33,39%; Y: CH3CH2CH2OH Z: CH3CHOHCH3C. X: CH3CH2CH2OH 43,39%; Y: CH3CH2CH2CH2OH Z: CH3CH2CHOHCH3D. X: CH3CH2CH2OH 33,39%; Y: CH3CH2CH2CH2OH Z: CH3CH2CHOHCH3Cu 9. Th tch hi ca 6,84 gam hn hp 2 cht X, Y l ng ng k tip nhau bng th tch ca 3,2 gam kh oxi o cngiu kin. t chy hon ton 3,42 gam hn hp trn cn dng 6,045 lt O2 (ktc) thu c 7,92 gam CO2. Oxi ho khnghon ton X hoc Y u thu c sn phm c phn ng trng gng v u c mch cacbon khng phn nhnh. Cng thccu to ca X, Y tng ng lA. CH3OH v CH3CH2OH. B. CH3CH2OH v CH3CH2CH2OHC. CH3CH2CH2OH v CH3CH2CH2CH2OH D. CH3CH2CH2CH2OH v CH3CH2CH2CH2CH2OHCu 10. 109,2oC v 1 atm, th tch ca 1,08 gam hn hp 2 cht hu ccng chc X, Y bng 627,2 ml. Nu cho 1,08 gamhn hp trn tc dng vi Na d th c 336 ml kh thot ra (ktc) ; cn nu t chy hon ton 1,08 gam hn hp ny th thuc 896 ml kh CO2 (ktc) v 1,08 gam H2O. Cng thc phn t X, Y lA. CH3OH v C2H5OH. B. C2H5OH v C2H4(OH)2

C. C2H4(OH)2 v C3H5(OH)3 D. C3H7OH v C2H4(OH)2Cu 11. Ho hi 1,4 gam mt anehit X thu c th tch hi ng bng th tch ca 0,64 gam oxi cng iu kin nhit v p sut. Mt khc, hiro ho hon ton X (xt Ni, to ) thu c ru iso butylic. Cng thc cu to ca X l

A. CH3CH2CH2CHO B. CH2=CHCH2CHOC. CH3CH(CH3)CHO D. CH2=C(CH3)CHO

Cu 12. Ho tan cng mt lng oxit ca kim loi M (c ho tr khng i) trong dung dch HCl v dung dch HNO3. C cn2 dung dch thu c 2 mui khan, thy khi lng mui nitrat nhiu hn khi lng mui clorua mt lng bng 99,38 %khi lng oxit em ho tan. Cng thc oxit lA. MgO B. Al2O3 C. CuO D. Fe2O3Cu 13. Hoat tan hon ton 12 gam hn hp X gm CuO, Fe2O3, MgO cn dng va 225 ml dung dch HCl 2M. Mtkhc, nu t nng 12 gam X trong kh CO d phn ng xy ra hon ton th thu c 10 gam cht rn Y. Phn trm khilng Fe2O3 trong hn hp X bngA. 33,33 % B. 40,00 % C. 66,67 %. D. 50,00 %Cu 14. Kh m gam Fe2O3 bng CO mt thi gian c cht rn X. Ho tan ht cht rn X trong dung dch HNO3 long, thuc 0,224 lt kh NO (l sn phm kh duy nht ktc). C cn dung dch sau phn ng c 18,15 gam mui khan. Hiusut ca phn ng kh oxit st bngA. 26,67 % B. 30,25 % C. 13,33 % D. 25,00 %Cu 15. ho tan hon ton mt hiroxit ca kim loi M (c ho tr khng i) cn mt lng axit H2SO4ng bng khilng hiroxit em ho tan. Cng thc phn t hiroxit kim loi lA. Al(OH)3 B. Fe(OH)3 C. Mg(OH)2 D. Cu(OH)2.Cu 16. Nh t t 3 V1 ml dung dch Ba(OH)2 (d.d X) vo V1 ml dung dch Al2(SO4)3 (d.d Y) th phn ng va v ta thuc kt ta ln nht l m gam.. Nu trn V2 ml dung dch X trn vo V1 ml dung dch Y th kt ta thu c c khilng bng 0,9m gam. So snh t l V2/ V1 thy

A. V2 / V1 = 2,7 hoc V2 / V1 = 3,55 B. V2 / V1 = 2,5 hoc V2 / V1 = 3,25C. V2 / V1 = 1,7 hoc V2 / V1 = 3,75 D. V2 / V1 = 2,5 hoc V2 / V1 = 3,55

Cu 17. Hai cc ng axit H2SO

4long t trn 2 a cn A v B, cn v tr thng bng. Cho 5 gam CaCO

3vo cc a A

; 4,8 gam M2CO3 (M l kim loi kim). Sau khi phn ng xong, cn trli v tr thng bng. Kim loi M lA. Li B. Na C. K D. RbCu 18. Ho tan 19,5 gam hn hp X gm Na2O v Al2O3 vo nc c 500 ml dung dch Y. Dn t t kh CO2 vo dungdch Y ng thi khuy u cho n khi bt u xut hin kt ta th dng li, thy th tch kh CO2 (ktc) dng ht 2,24lt. Khi lng Na2O v Al2O3 trong hn hp X ln lt bngA. 6,2g v 13,3g B. 12,4g v 7,1g C. 9,3g v 10,2g D. 10,85g v 8,65gCu 19. Cho 7 gam hn hp Cu, Fe (trong Fe chim 40 % khi lng) tc dng vi V ml dung dch HNO3 long, sau khiphn ng xy ra hon ton, thu c kh NO (sn phm kh duy nht) v cn li 4,76 gam kim loi khng tan v dung dchX ch cha mui nitrat kim loi. Khi lng mui c trong dung dch X bngA. 9,68 gam. B. 7,58 gam C. 7,20 gam D. 6,58 gam


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Cu 20. Mnh no sau y khng ng ?A. S thay i nng cht phn ng lm chuyn dch cn bng.B. S thay i nng cht phn ng lm thay i hng s cn bng.C. S thay i nhit phn ng lm thay i hng s cn bng.D. S thay i nhit phn ng lm thay chuyn dch cn bng khi phn ng thu hoc to nhit.

Cu 21. iu ch SO2 trong phng th nghim bng cch cho dung dch H2SO4 tc dng vi mui sunfit. Mui no sau yc chn iu ch SO2 l thun li nht ?

A. Na2SO3 v CaSO3. B. CaSO3 v BaSO3C. BaSO3 v CuSO3 D. CuSO3 v Na2SO3

Cu 22. M t hin tng th nghim no sau y khngng ?

A un nng dung dch lng trng trng, xut hin kt ta trng.B Nh vi git dung dch HNO3 vo dung dch lng trng trng thy xut hin kt ta mu vng.C. t chy mt mu lng trng trng xut hin mi kht nh mi tc chy.D.Nh vi git dung dch NaOH v dung dch CuSO4 vo dung dch lng trng trng, trn u thy xut hin mu vng.Cu 23. Polime no di y thc t khng s dng sn xut cht do ?A. Poli(vinyl clorua) B. Poliacrilonitrin

C. Polimetylmetacrylat D. Poliphenol fomanehitCu 24. Cho hn hp X gm 11,6 gam oxit st t v 3,2 gam Cu tc dng vi 400 ml dung dch HCl 1M. Kt thc phnng, cho dung dch thu c tc dng vi dung dch AgNO3 d th khi lng kt ta thu c lA. 28,7 gam. B. 57,4 gam. C. 73,6 gam. D. 114,8 gam.Cu 25. thu c kt ta hon ton Al(OH)3 t dung dch mui c th thc hin phn ng:

A. Cho dung dch AlCl3 tc dung vi dung dch NaOH dB. Cho dung dch Al2(SO4)3 tc dng vi dung dch Ba(OH)2 va

C. Cho dung dch AlCl3 vi dung dch NH3 d.D. Cho dung dch NaAlO2 tc dng vi dung dch HCl d

Cu 26. Na, K, Ca c sn xut trong cng nghip bng cch :A. Dng phng php nhit luyn B. in phn hp cht nng chyC. Dng phng php thu luyn D. in phn dung dich mui

Cu 27. C hai cht bt ring bit Fe3O4 v Fe2O3, phn bit hai cht bt c th dng ho cht l: A. Dung dch HNO3B. Dung dich HCl

C. Dung dch HCl v Cu D. Dung dch H2SO4 long v AlCu 28: Cho t t lung kh CO2 sc vo dung dch NaAlO2 cho n d hin tng xy ra l:

A. Dung dch vn c sau trong trliB. Dung dch b vn cC. Thi gian u khng c hin tng g, sau dung dch vn cD. Khng c hin tng g.

Cu 29. Nhng thanh kim loi R (ho tr II)c khi lng 9,6g vo dung dch cha 0,24 mol Fe(NO3)3. Sau mt thi gian lythanh kim loi ra, dung dch thu c c khi lng bng khi lng dung dch ban u, thanh kim loi sau em ho tanbng dd HCl d th thu c 6,272 lit H2(ktc). Kim loi R l A. Zn. B. Mg. C. Ni. D. Cd.Cu 30. iu khng nh no sau y khngng ?

A. un nng ru metylic vi axit H2SO4c 170oC khng thu c anken.

B. Anilin khng lm nc qu tm ho xanh.C. Phenol tc dng vi dung dch nc brom to kt ta trng.D. Tt c cc ru no a chc u ho tan c Cu(OH)2 to dung dch mu xanh lam.

Cu 31. Cho a mol AlCl3 tc dng vi dung dch cha b mol NaOH. sau phn ng thu c kt ta th t l a : b bngA. a/b = 1/5 B. a/b = 1/4 C . a/b > 1/4 D . a/b < 1/4Cu 32. Cho 6,94 gam hn hp gm FexOy v Al ho tan hon ton trong 100 ml dung d ch H2SO4 1,8 M, to ra 0,672 lt H2(ktc). Bit khi lng H2SO4 ly d 20% so vi lng cn thit cho phn ng . FexOy lA. FeO B. Fe

2O

3Fe

3O

4D. Bi ton khng gii c.

Cu 33. nhn bit cc cht etanol, propenol, etylenglycol, phenol c th dng cp cht:A. nc brom v dung dch NaOH B. nc brom v Cu(OH)2C. dung dch NaOH v Cu(OH)2 D. dung dch KMnO4 v Cu(OH)2Cu 34. Cho Na d vo m gam dung dch ru etylic trong nc, thy lng hiro bay ra bng 0,03m gam. Nng phntrm C2H5OH trong dung dch bngA. 75,57 % B. 72,57 % C. 70,57 % D. 68,57 %Cu 35. Cc dung dch sau c cng nng mol/lit : NH3, Na2CO3, NaOH, NH4Cl. pH ca chng tng dn theo th t

A. NH3, Na2CO3, NaOH, NH4Cl B. NH4Cl, Na2CO3, NaOH, NH3C. NH3, NH4Cl, NaOH, Na2CO3 D. NH4Cl, Na2CO3, NH3, NaOH

Cu 36. Kt lun no sau ykhng ng ?


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A. Hn hp Na2O + Al2O3 c th tan ht trong nc.B. Hn hp Fe2O3 + Cu c th tan ht trong dung dch HCl.C. Hn hp KNO3 + Cu c th tan ht trong dung dch NaHSO4.D. Hn hp FeS + CuS c th tan ht trong dung dch HCl.

Cu 37. Cho s phn ng :

X + HNO3long Fe(NO3)3 + NO + H2O. S cht X c th thc hin phn ng trn lA. 3 B. 4 C. 5 D. 6.Cu 38. Trong s phn ng : a) Cu + X Y + Z ; b) Fe + Y Z + Cu

c) Fe + X Z. d) Z + Cl2 X.Cc cht X,Y, Z ln lt l

A. FeCl3 ; FeCl2 ; CuCl2 B. FeCl3 ; CuCl2 ; FeCl2C. AgNO3 ; Fe(NO3)2 ; Cu(NO3)2 D. HNO3 ; Cu(NO3)2 ; Fe(NO3)3

Cu 39. X l mt anehit mch h, mt th tch hi ca X kt hp c vi ti a 3 th tch H2, sinh ra ancol Y. Y tc dngvi Na dc th tch H2ng bng th tch hi ca X ban u ( cc th tch kh v hi o cng iu kin). X c cngthc tng qut l

A. CnH2n 1CHO B. CnH2n (CHO)2 C. CnH2n + 1CHO D. CnH2n 2 (CHO)2.Cu 40. Pht biu no sau y l ngA. Cc axit hu cu tan trong nc . B. Cc axit hu cu lm qu tm.C. Cc axit hu cu th lng. D. Axit fomic mnh nht trong dy ng ng.Cu 41. Trong dy bin ho sauC2H6 C2H5Cl C2H5OH CH3CHO CH3COOH CH3COOC2H5 C2H5OHS phn ng oxi ho kh l A. 2 B. 3 C. 4 D. 6

Cu 42. C 2 axit cacboxylic X v Y. Trn 1 mol X vi 2 mol Y ri cho tc dng vi Na dc 2 mol H2 . Trn 2 mol Xvi 1 mol Y ri cho tc dng vi Na dc 2,5 mol H2. S nhm chc trong X v Y lA. X, Y u n chc. B. X n chc, Y 2 chcC. X 2 chc, Y n chc. D. X, Y u 2 chc

Cu 43. Khi t chy cc ng ng ca mt loi ancol th t l nCO2 : nH2O tng dn khi s nguyn t C trong ancol tngdn. Cng thc ca dy ng ng ancol lA. CnH2nO, n 3 B. CnH2n + 2O, n 1 CnH2n 6O, n 7 D. CnH2n 2O, n 3Cu 44. t chy hon ton mt hirocacbon X thu c s mol CO2 bng s mol H2O. iu khng nh no sau y lunng.A. X l mt anken B. X l mt xicloankanC. Phn t X cha mt lin kt D. T l s H : s C trong X lun bng 2:1Cu 45. Tcapron l mt loiA. taxetat B. tvisco C. tpoliamit D. tpolieste.

Cu 46. Dy gm cc cht u tc dng vi dung dch Ag2O/NH3 lA. axetandehit, butin -1, eten B. axetandehit, butin -2, etinC. natri fomiat, vinylaxetilen, etin D. natri fomiat, vinylaxetilen, eten.

Cu 47. in phn dung dch CuCl2 vi in cc tr, sau mt thi gian thu c 0,32 gam Cu catot v mt lng kh X anot. Hp th ton b lng kh x trn vo 200 ml dung d ch NaOH ( nhit thng ). Sau phn ng, nng NaOH cnli l 0,05M (gi thit th tch dung dch khng thay i). Nng ban u ca dung dch NaOH l (Cu = 64)

A. 0,15M B. 0,2M C. 0,1M D. 0,05M.Cu 48. -aminoaxit X cha mt nhm NH2. Cho 10,3 gam X tc dng vi axit HCl(d) , thu c13,95 gam mui khan. cng thc cu to thu gn ca X l(cho H = 1, C = 12, O = 16, N =

A. H2NCH2COOH B. H2NCH2CH2COOHC. CH3CH2CH(NH2)COOH D. CH3CH(NH2)COOH

Cu 49. Cho dy cc cht : Ca(HCO3)2, NH4Cl, (NH4)2CO3, ZnSO4, Al(OH)3, Zn(OH)2. S cht trong dy c tnh cht lng

tnh l A. 3 B. 5 C. 4 D. 2Cu 50. t chy hon ton a mol axit hu cY c 2a mol CO2. Mt khc trung ho a mol Y cn va 2a molNaOH. Cng thc cu to thu gn ca Y lA. HOOC-CH2CH2-COOH B. C2H5COOHC. CH3-COOH D. HOOC-COOH.

p n

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


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B C D B A C B A C B D D A C D A B21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37D D B B C B A B B D C B B A D D C41 42 43 44 45 46 47 48 49 50 18 19 20 38 39 40B C B D C C C C C D C C B B D D

S : 06

Cu 1: Hn hp X cha K2O, NH4Cl, KHCO3 v BaCl2 c s mol bng nhau. Cho hn hp X vo nc (d), un nng,dung dch thu c chaA. KCl, KOH. B. KCl. C. KCl, KHCO3, BaCl2. D. KCl, KOH, BaCl2.Cu 2: Cho hp cht hu cX c cng thc phn t C6H6O2. Bit X tc ng vi dung dch KOH theo t l mol l 1 : 2. Sng phn cu to ca X lA. 3. B. 4. C. 1. D. 2.Cu 3: Cho Ba kim loi ln lt vo cc dung dch sau: NaHCO3, CuSO4, (NH4)2CO3, NaNO3, MgCl2. S dung dch to ktta lA. 1. B. 2. C. 3. D. 4.Cu 4: Ho tan ht cng mt lng Fe trong dung dch H2SO4 long (1) v H2SO4c nng (2) th th tch kh sinh ra trongcng iu kin lA. (1) bng (2). B. (1) gp i (2). C. (2) gp ri (1). D. (2) gp ba (1).Cu 5: C bao nhiu hp cht hu c(cha C, H, O) phn t khi l 60 v tc dng c vi Na kim loI A. 5. B.

4. C. 3. D. 2.Cu 6: Hn hp gm C2H5OH, CH3CHO, CH3COOH. Ngi ta thu hi CH3COOH bng cch dng ho chtA. Na, dung dch H2SO4. B. Ag2O/NH3, dung dch H2SO4.C. Cu(OH)2, dung dch NaOH. D. dung dch NaOH, dung dch H2SO4.Cu 7: Cho s: Ru anken polime. C bao nhiu polime to thnh t ru c cng thc phn t C5H12O cmch cacbon phn nhnh:A. 3. B. 4. C. 5. D. 6.Cu 8: Cho cc cht: C2H6, C2H4, CH3CHO, CH3COOCH=CH2. S cht ph hp vi cht X theo s sau C2H2 X Y CH3COOH.A. 4. B. 3. C. 2. D. 1.Cu 9: C4H8O2 l hp cht tp chc ru - anehit. Sng phn ca n lA. 3. B. 4. C. 5. D. 6.

Cu 10: Cho s:X Y D E thu tinh plecxiglat.

X c cng thc l:A. CH3CH(CH3)CH2OH. B. CH2=C(CH3)CH2OH.C. CH2=C(CH3)CH2CH2OH. D. CH3CH(CH3)CH2CH2OH.Cu 11: t chy hon ton 10 ml mt este cn 45 ml O2 thu c V 2CO : V 2H O= 4 : 3. Ngng t sn phm chy thy th

tch gim 30 ml. Cc th tch o cng iu kn. Cng thc ca este lA. C4H6O2. B. C4H6O4. C. C4H8O2 D. C8H6O4.Cu 12: Cho mt t bt st vo dung dch AgNO3 d, sau khi kt thc th nghim thu c dung dch X gmA. Fe(NO3)2 , H2O. B. Fe(NO3)2 , AgNO3 d, H2O.C. Fe(NO3)3 , AgNO3 d, H2O. D. Fe(NO3)2 , Fe(NO3)3 , AgNO3 d, H2O.

Cu 13: Dung dch cha cc ion Na+

, Ca2+

, Mg2+

, Ba2+

, H+

, Cl

. Phi dng dung dch cht no sau y loi b ht cc ionCa2+, Mg2+, Ba2+, H+ ra khi dung dch ban u?A. K2CO3. B. NaOH. C. Na2SO4. D. AgNO3.

Cu 14: Mt hn hp X c khi lng m gam gm Ba v Al. Cho m gam X tc dng vi nc d, thu c 8,96 lt khH2.Cho m gam X tc dng vi dung dch Ba(OH)2 d thu c 22,4 lt kh H2. (Cc phn ng u xy ra hon ton, cc thtch kho iu kin tiu chun, cho Al = 27, Ba = 137). m c gi tr l:A. 29,9 gam. B. 27,2 gam. C. 16,8 gam. D. 24,6 gam.Cu 15: Cho cc cu sau:

1- Cht bo thuc loi cht este.2- Tnilon, tcapron, tenang u iu ch bng phn ng trng ngng.

+ O2 + CH3OH trn h


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3- Vinyl axetat khng iu chc trc tip t axit v ru tng ng.4- Nitro benzen phn ng vi HNO3c (xc tc H2SO4c) to thnh m-initrobenzen.5- Anilin phn ng vi nc brom to thnh p-bromanilin.Nhng cu ng l:

A. 1, 2, 4. B. 2, 3, 4. C. 1, 4, 5. D. 1, 3, 4.Cu 16: Cho hn hp hai aminoaxit u cha 1 nhm amino v 1 nhm cacboxyl vo 440 ml dung d ch HCl 1M c dungdch X. tc dng ht vi dung dch X cn 840 ml dung dch NaOH 1M. Vy khi to thnh dung dch X thA. aminoaxit v HCl cng ht. B. d aminoaxit.C. d HCl. D. khng xc nh c.

Cu 17: Hn hp X gm hai axit cacboxylic u no, mch h. Trung ho 0,3 mol X cn 500 ml dung dch NaOH 1M. Khit chy hon ton 0,3 mol X thu c 11,2 lt CO2 (ktc). Cng thc ca hai axit l:A. HCOOH; C2H5COOH. B. CH3COOH; C2H5COOH.C. HCOOH; (COOH)2. D. CH3COOH; CH2(COOH)2.Cu 18: un 9,2 gam glixerin v 9 gam CH3COOH c xc tc thu c m gam sn phm hu cE cha mt loi nhmchc. Bit hiu sut phn ng bng 60%. Gi tr ca m l:A. 8,76. B. 9,64. C. 7,54. D. 6,54.Cu 19: t chy hon ton 1,44 gam hp cht thm X thu c 2,86 gam CO2, 0,45 gam H2O v 0,53 gam Na2CO3. X ccng thc phn t trng vi cng thc n gin nht. Cng thc ca X lA. C6H5COONa. B. C6H5ONa. C. C6H5CH2ONa. D. C6H5CH2CH2ONa.Cu 20: Bt nhm dng ch to hn hp tec mit hn kim loi. Thnh phn ca hn hp tec mit gmA. Al2O3 v Fe3O4. B. Al v Fe2O3.

C. Al v FeO. D. Al v Fe3O4.Cu 21: Cho V lt kh CO2 (ktc) hp th hon ton vo 200 ml dung dch hn hp KOH 1M v Ba(OH)2 0,75M thu c27,58 gam kt ta. Gi tr ln nht ca V l (cho C = 12, O =16, Ba = 137) A. 6,272 lt. B. 8,064 lt. C. 8,512 lt.

D. 2,688 lt.Cu 22: Cho 10 gam hn hp Fe, Cu (cha 40% Fe) vo mt lng H2SO4c, un nng. Kt thc phn ng, thu c dungdch X, kh Y v cn li 6,64 gam cht rn. Khi lng mui to thnh trong dung dch X l (cho O = 16; S = 32; Fe = 56;Cu = 64)A. 9,12 gam. B. 12,5 gam. C. 14,52 gam. D. 11,24 gam.Cu 23: Cho 3,04 gam hn hp X gm FeO, Fe3O4, Fe2O3. kh hon ton hn hp X th cn 0,1 gam hiro. Mt khc,ho tan hn hp X trong H2SO4c, nng th th tch kh SO2 (l sn phm kh duy nht ktc) l (cho H = 1; O = 16; Fe =56)

A. 112 ml. B. 224 ml. C. 336 ml. D. 448 ml.Cu 24: Mt este ca ru metylic tc dung vi nc brom theo t l s mol l 1 : 1. Sau phn ng thu c sn phm trong brom chim 35,1% theo khi lng. Este l:A. metyl propionat.B. metyl panmitat. C. metyl oleat. D. metyl acrylat.Cu 25: Trn dung dch cha a mol NaAlO2 vi dung dch cha b mol HCl. thu c kt ta th cn c t l :A. a : b = 1 : 4. B. a : b < 1 : 4.C. a : b = 1 : 5. D. a : b > 1 : 4.Cu 26: Cho mt axit cacboxylic n chc tc dng vi etylenglicol thu c mt este duy nht. Cho 0,2 mol este ny tcdng va vi dung dch NaOH thu c 16,4 gam mui. Axit l:A. HCOOH. B. CH3COOH. C. C2H5COOH. D. C2H3COOH.Cu 27: t chy hon ton 1,18 gam mt hp hp cht amin n chc Y bng mt lng khng kh va . Dn ton bkh sau phn ng vo bnh ng dung dch Ca(OH)2 d thu c 6 gam kt ta v 9,632 lt kh (ktc) duy nht thot rakhi bnh. Tm cng thc phn t ca Y.

A. CH5N. B. C2H7N. C. C3H9N. D. C4H11N.Cu 28: Kh 1,6 gam hn hp hai anehit no bng kh H2 thu c hn hp hai ru. un hai ru ny vi H2SO4c chn hp hai olefin l ng ng k tip. t hai olefin ny c 3,52 gam CO2. Bit cc phn ng xy ra hon ton. Cngthc ca hai anehit l (cho H = 1; C =12; O = 16)

A. HCHO, CH3CHO. B. CH3CHO, C2H5CHO.C. C2H5CHO, C3H7CHO. D. Khng xc nh c.

Cu 29: Trong qu trnh in phn dung dch KCl, qu trnh no sau y xy ra cc dng (anot)A. ion Cl b oxi ho. B. ion Cl b kh. C. ion K+ b kh. D. ion K+ b oxi ho.

Cu 30: lm mm mt loi nc cng c cha CaCl2 v Mg(HCO3)2 ta c th dngA. Na3PO4. B. NaOH. C. NaCl. D. Ca(OH)2.


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Cu 31: Hn hp hai cht hu ctc dng vi dung dch NaOH thu c hai mui ca hai axit n chc v mt ru. Haicht hu c l1) X, Y l hai este ca cng mt ru. 2) X, Y l hai este ca cng mt axit.3) X, Y l mt este v mt axit. 4) X, Y l mt este v mt ru.

Nhng cu ng lA. (1), (2). B. (2), (3). C. (3), (4). D. (1), (3).Cu 32: un hn hp gm metanol, etanol v propanol-1 vi H2SO4c nhit thch hp t 140

on 180oC th thuc bao nhiu sn phm l hp cht hu c?A. 5. B. 6. C. 8. D. 9.

Cu 33: Cho cc cht: C4H10O, C4H9Cl, C4H10, C4H11N. Sng phn ca cc cht gim theo th tA. C4H9Cl, C4H10, C4H10O, C4H11N. B. C4H11N, C4H9Cl, C4H10O, C4H10.

C. C4H11N, C4H10O, C4H9Cl, C4H10. D. C4H11N, C4H10O, C4H10, C4H9Cl.Cu 34: Khi vt bng gang, thp bn mn in ho trong khng khm, nhn nh no sau y ng?

A. Tinh th st l cc dng, xy ra qu trnh kh.B. Tinh th st l cc m, xy ra qu trnh oxi ho.C. Tinh th cacbon l cc dng, xy ra qu trnh oxi ho.D. Tinh th cacbon l cc m, xy ra qu trnh oxi ho.

Cu 35:t chy hon ton a gam mt ru thu c 33a/23 gam CO2 v 18a/23 gam H2O. Ru l:A. C2H5OH. B. C2H4(OH)2. C. C3H7OH. D. C3H5(OH)3.Cu 36: X phng ho hon ton 0,1 mol mt este n chc bng 180 ml dung dch MOH 1 mol/lt (M l kim loi kim). Ccn dung dch thu c cht rn A. t ht cht rn A thu c 12,42 gam M2CO3. Kim loi M l

A. Li. B. Na C. K. D. Rb.Cu 37: Xt phn ng: 2Al + 2NaOH + 2H2O 2NaAlO2 + 3H2. Vai tr ca cc cht l:

A. Al l cht kh, nguyn t H trong NaOH ng vai tr l cht oxi ho.B. Al l cht kh, nguyn t O trong NaOH ng vai tr l cht oxi ho.C. Al l cht kh, nguyn t H trong H2O ng vai tr l cht oxi ha.D. Al l cht kh, nguyn t H trong c NaOH v H2O ng vai tr l cht oxi ho.

Cu 38: Cho 20 gam S vo mt bnh c dung tch bng 44,8 lt cha O2 (ktc), th tch cht rn khng ng k. Nung bnhcho n khi phn ng hon ton, p sut trong bnh khi trv 0oC l (cho S = 32)A. 2atm. B. 2,1atm. C. 1atm. D. 1,2atm.Cu 39: Dung dch mui no di no di y c pH > 7 ?A. NaHSO4. B. NaNO3. C. NaHCO3. D. (NH4)2SO4.

Cu 40: Ho tan hon ton 16 gam hn hp Mg v Fe bng dung dch H2SO4 long va . Sau phn ng thy khi lngdung dch tng thm 15,2 gam so vi ban u. Khi lng mui khan thu c khi c cn dung dch sau phn ng l (cho H= 1; O = 16; Mg = 24; S = 32; Fe = 56)A. 53,6 gam. B. 54,4 gam. C. 92 gam D. 92,8 gam.Cu 41: Ch dng thm dung dch H2SO4 long, c th nhn bit c bao nhiu kim loi trong s cc kim loi: Mg, Al, Fe,Cu, Ba?A. 2. B. 3. C. 4. D. 5.Cu 42: Cho s phn ng:

CH2=CH2 + KMnO4 + H2SO4 (COOH)2 + MnSO4 + K2SO4 + H2OT l v h s gia cht kh v cht oxi ho tng ng l:

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

Cu 43: Cho 11,6 gam mui FeCO3 tc dng va vi dung dch HNO3, c hn hp kh CO2, NO v dung dch X. Khi

thm dung dch HCl (d) vo dung dch X, th dung dch thu c ho tan ti a bao nhiu gam bt ng kim loi, bit rngc kh NO bay ra. (Cho C = 12; O = 16; Fe = 56; Cu = 64).

A. 14,4 gam B. 7,2 gam. C. 16 gam. D. 32 gam.Cu 44: Dy no sau y xp theo chiu tng dn bn knh ca cc ion?A. Al3+ ; Mg2+; Na+ ; F ; O2. B. Na+; O2; Al3+ ; F; Mg2+.C. O2; F; Na+; Mg2+; Al3+. D. F; Na+; O2; Mg2+; Al3+.Cu 45: Nhit phn hon ton Fe(NO3)2 trong khng kh thu c sn phm gm:A. FeO, NO2, O2. B. Fe2O3, NO2. C. Fe, NO2, O2. D. Fe2O3, NO2, O2.


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Cu 46: C bn hp cht hu ccng thc phn t ln lt l: CH2O, CH2O2, C2H2O3 v C3H4O3. S cht va tc dng viNa, va tc dng vi dung dch NaOH, va c phn ng trng gng l:A. 1. B. 2. C. 3. D. 4.Cu 47: Nhit phn hon ton m gam hn hp X gm CaCO3 v Na2CO3 thu c 11,6 gam cht rn v 2,24 lt kh (ktc).Khi lng CaCO3 v Na2CO3 trong hn hp X ln lt l(cho C = 12; O = 16; Na = 23; Ca = 40)

A. 10,0 gam v 6,0 gam. B. 11,0 v 6,0 gam.C. 5,6 gam v 6,0 gam. D. 5,4 gam v 10,6 gam.

Cu 48: X phng ho este C5H10O2 thu c mt ru. un ru ny vi H2SO4c 170oC c hn hp hai olefin.

Este l:A. CH3COOCH2CH2CH3. B. CH3COOCH(CH3)2.C. HCOOCH(CH3)C2H5. D. HCOO(CH2)3CH3.Cu 49: Cho hai mui X, Y tho 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 v Y l mui no di y?A. NaNO3 v NaHSO4. B. NaNO3 v NaHCO3. C. Fe(NO3)3 v NaHSO4. D. Mg(NO3)2 v KNO3.Cu 50: 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 v vn c. B. vn c.C. si bt kh. D. vn c, sau trong sut trli.

P N

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17B A D C B D A B C B A C A A D C C21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37B A B C D B C B A A D C C B D C C41 42 43 44 45 46 47 48 49 50 18 19 20 38 39 40D D D A D C C C A A D A D C C B

S : 07Cu 1. Thc hin p/ nhit nhm m gam hn hp A gm Al, Fe2O3c hn hp B ( H = 100%).Chia B thnh 2 phn bng nhau. Ho tan phn 1 trong H2SO4 long d, thu c 1,12 lt kh (ktc).Ho tan phn 2 trong dung dch NaOH d th khi lng cht khng tan l 4,4 gam. Gi tr ca m bng: A. 6,95g. B.13,9g. C. 8,42g. D. 15,64g.Cu 2. Ly 13,4gam hn hp Al v Fe2O3 thc hin hon ton p/ nhit nhm, thu c cht rn X. Ho tan hon ton Xtrong dung dch H2SO4 long d thy thot ra 5,6 lt kh H2 (ktc). Khi lng Al v Fe2O3 trong hn hp ban u ln lt l(cho Al = 27, Fe = 56):A. 5,4g v 8,0g. B. 2,7g v 10,7g. C. 8,1g v 5,3g. D. 10,8g v 2,6gCu 3. Ly 11 gam hn hp gm Al v Fe cho tc dng hon ton vi dung dch HCl long thu c 8,96 lit kh H2 (ktc).Phn trm khi lng ca Al v Fe trong hn hp ban u tng ng l: A. 49,09% v 50,91%. B.36,82% v 63,18%.

C. 61,36% v 38,64%. D. 73,64% v 26,36%.Cu 4. Cho 2,2 gam hn hp Al v Fe trong s nguyn t Al gp i s nguyn t Fe, tc dng vi lng d dung dchmui clorua ca kim loi M ( M c ho tr II trong mui v ng sau Al, Fe trong dy in ho) thu c 5,12 gam cht rn.Cng thc mui ca kim loi M l:A. Ni. B. Pb. C. Cu. D. HgCu 5. X l mt hirocacbon th kh. t chy hon ton X thu c th tch kh CO2 gp hai ln th tch hi nc. Nut chy hon ton X bng mt th tch kh oxi dng d 20% th hn hp kh thu c sau khi lm ngng t hi nc sbng 2,5 ln th tch ca X em t.( cc th tch kh v hi o cng iu kin to, p) Cng thc ca X l cht no sau y:A. C2H4. B. C4H4. C. C3H4. D. C2H2.


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Cu 6. Ho tan 10 gam hn

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20 Bo de Thi Thu ĐH nam 2011(langtuvotinh_dx_sưu tâm)