5 DE HSG TB

1

S GIO DC V O TO

THI BNH

THI CHN HC SINH GII LP 12

NM HC 2009 2010; Mn thi: HA HC

Thi gian lm bi: 90 pht

M thi 156

H, tn th sinh:......................................................S bo danh:......................................

Cho bit khi lng nguyn t (theo vC) ca cc nguyn t:

H = 1; Li = 7; C = 12; N = 14; O = 16; Na = 23; Mg = 24; Al = 27; P = 31; S = 32; Cl = 35,5;

K = 39; Ca = 40; Fe = 56; Cu = 64; Zn = 65; As = 75 ; Br = 80; Rb = 85,5; Ag = 108; Ba =

137.

Cu 1: Dy gm cc cht u c kh nng lm i mu dung dch qu tm l

A. CH3NH2, C2H5NH2, HCOOH B. C6H5NH2, C2H5NH2, HCOOH

C. CH3NH2, C2H5NH2, H2N-CH2-COOH D. CH3NH2, C6H5OH, HCOOH

Cu 2: Thu phn hon ton 34,2 gam saccaroz. Ly ton b sn phm X ca phn ng thu

phn cho tc dng vi lng d AgNO3/NH3 thu c a gam kt ta. Cn nu cho ton b sn

phm X tc dng vi dung dch nc brom d th c b gam brom phn ng.Gi tr ca a, b ln

lt l

A. 43,2 v 32 B. 43,2 v 16 C. 21,6 v 16 D. 21,6 v 32

Cu 3: Cho dung dch NaOH d vo 100 ml dung dch cha ng thi Ba(HCO3)2 0,5 M v

BaCl2 0,4 M th thu c bao nhiu gam kt ta?

A. 19,7 gam B. 29,55 gam C. 23,64 gam D. 17,73 gam

Cu 4: Cho 18,3 gam hn hp X gm Na v Ba vo nc thu c dung dch Y v 4,48 lt H2

(ktc). Xc nh th tch CO2 (ktc) cho vo dung dch Y thu c kt ta cc i?

A. 1,12 lt V 6,72 lt B. 2,24 lt V 6,72 lt

C. 2,24 lt V 4,48 lt D. 4,48 lt V 6,72 lt

Cu 5: Thu phn cc cht sau trong mi trng kim: CH3CHCl2(1), CH3COOCH=CH-

CH3(2),

CH3COOC(CH3)=CH2(3), CH3CH2CCl3(4), CH3COO-CH2-OOCCH3(5), HCOOC2H5 (6). Nhm

cc cht sau khi thu phn c sn phm tham gia phn ng trng gng l

A. (1),(4),(5),(6) B. (1),(2),(5),(3)

C. (1),(2),(5),(6) D. (1),(2),(3),(6)

Nguyn Anh Phong i Hc Ngoi Thng H Ni 0975 509 422 Ngi con qu la : Hng H Thi Bnh

2

Cu 6: Cho dung dch NH3 d vo dung dch X gm AlCl3, ZnCl2 v FeCl3 thu c kt ta Y.

Nung kt ta Y thu c cht rn Z. Cho lung kh H2 d qua Z (un nng) thu c cht rn T.

Cc phn ng xy ra hon ton.Trong T c cha

A. Al2O3, Zn B. Al2O3, Fe C. Fe D. Al2O3, ZnO, Fe

Cu 7: Hai cht no di y khi tham gia phn ng trng ngng to t nilon-6,6?

A. Axit glutamic v hexametyleniamin B. Axit aipic v hexametyleniamin

C. Axit picric v hexametyleniamin D. Axit aipic v etilen glicol

Cu 8: Ho tan hon ton 0,1 mol FeS2 trong dung dch HNO3 c nng. Tnh th tch kh NO2

bay ra (ktc) v s mol HNO3 (ti thiu) phn ng (bit rng lu hunh trong FeS2 b oxi ho ln s

oxi ho cao nht)

A. 33,6 lt v 1,4 mol B. 33,6 lt v 1,5 mol

C. 22,4 lt v 1,5 mol D. 33,6 lt v 1,8 mol

Cu 9: Trong 2 lt dung dch HF c cha 4 gam HF nguyn cht c in li ( = 8%). pH ca dung

dch HF l

A. 1,34 B. 2,50 C. 2,097 D. 1

Cu 10: un nng m gam hn hp X gm C2H2, C2H4 v H2 vi xc tc Ni n phn ng xy ra

hon ton, thu c 8,96 lt (ktc) hn hp Y (c t khi so vi hir bng 8). t chy hon ton

cng lng hn hp X trn, ri cho sn phm chy hp th hon ton trong dung dch nc vi trong

d th khi lng kt ta thu c l

A. 20 gam B. 40 gam C. 30 gam D. 50 gam

Cu 11: un nng glixerol vi hn hp hai axit bo n chc c mt H2SO4 c xc tc thu

c ti a bao nhiu cht bo?

A. 8 B. 4 C. 10 D. 6

Cu 12: Cho phng trnh ion rt gn: a Zn + bNO3- + c OH

- d ZnO2

2- + e NH3 + g H2O

Tng cc h s (cc s nguyn ti gin) ca cc cht tham gia phn ng (a+b+c) l

A.12 B.9 C.11 D.10

Cu 13: Cho cc cht C4H10O,C4H9Cl,C4H10,C4H11N. S ng phn cu to ca cc cht gim

theo th t l

A. C4H11N, C4H10O, C4H9Cl, C4H10 B. C4H10O, C4H9Cl, C4H11N, C4H10

C. C4H10O, C4H9Cl, C4H10, C4H11N. D. C4H10O, C4H11N, C4H10, C4H9Cl

Cu 14: Cho nhng nhn xt sau :

1- iu ch kh H2S ngi ta cho mui sunfua tc dng vi cc dung dch axit mnh nh HCl,

HNO3, H2SO4(c)

2-Dung dch HCl c, S, SO2, FeO va c kh nng th hin tnh kh va c kh nng th hin tnh

oxi ho.

3

3- V hp bo qun thc phm lm bng st ty (st trng thic) b xy st ti lp st bn

trong, khi ngoi khng kh m th thic b n mn trc.

4- Hn hp BaO v Al2O3 c th tan hon ton trong nc.

5- Cho dung dch NaOH d vo dung dch Ca(HCO3)2 th thy xut hin kt ta.

6- Hn hp bt gm Cu v Fe3O4 c th tan hon ton trong dung dch H2SO4 long.

S nhn xt ng l

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

Cu 15: Mt hp cht hu c X mch h cha (C,H,O) c khi lng phn t l 60(u). X tc

dng vi Na gii phng H2. S cc cht tho mn gi thit trn l

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

Cu 16: Hn hp X gm mt hirocacbon th kh v H2 (t khi hi ca X so vi H2 bng

4,8). Cho X i qua Ni un nng n phn ng hon ton thu c hn hp Y (t khi hi ca Y

so vi CH4 bng 1). CTPT ca hirocacbon l

A. C2H2 B. C3H6 C. C3H4 D. C2H4

Cu 17: X l mt hp cht c CTPT C6H10O5 :

X + 2NaOH Ct0

2Y + H2O

Y + HCl(long) Z + NaCl

Hy cho bit khi cho 0.1mol Z tc dng vi Na d thu c bao nhiu mol H2?

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

Cu 18: Cho cc cp dung dch sau:

(1) Na2CO3 v AlCl3; (2) NaNO3 v FeCl2; (3) HCl v Fe(NO3)2

(4) NaHCO3 v BaCl2; (5) NaHCO3 v NaHSO4 .

Hy cho bit cp no xy ra phn ng khi trn cc cht trong cc cp vi nhau?

A. (1) (3) (4) B. (1) (4) (5) C. (1) (3) (5) D. (3) (2) (5)

Cu 19: Cho t t 100 ml dung dch HCl 1,5 M vo 0,4 lt dung dch X gm Na2CO3 v KHCO3

thu c 1,008 lt CO2 (ktc) v dung dch Y. Thm dung dch Ba(OH)2 d vo dung dch Y thu

c 29,55 gam kt ta. Nng mol/lit ca Na2CO3 v KHCO3 trong dung dch X ln lt l

A. 0,0375 M v 0,05M B. 0,2625M v 0,225M

C. 0,1125M v 0,225M D. 0,2625M v 0,1225M

Cu 20: Khi Crckinh V lt butan c hn hp A ch gm cc anken v ankan. T khi hi ca

hn hp A so vi H2 bng 21,75. Hiu sut ca phn ng Crckinh butan l bao nhiu?

A. 33,33% B. 50.33% C. 46,67% D. 66,67%


4

Cu 21: Cho s sau:

X (C4H9O2N) 0,tNaOH X1

duHCl X2 khanHClOHCH ,3 X3

KOH H2N-CH2COOK

Vy X2 l:

A. H2N-CH2-COOH B. ClH3N-CH2COOH

C. H2N-CH2-COONa D. H2N-CH2-COOC2H5

Cu 22: Cho a gam mt axit n chc phn ng va vn vi 2

a gam Na. Axit l

A. C2H5COOH B. C2H3COOH C. HCOOH D. CH3COOH

Cu 23: Nhng thanh Mg vo dung dch cha 0,1 mol mui sunphat ca mt kim loi M, sau

phn ng hon ton ly thanh Mg ra thy khi lng thanh Mg tng 4,0 gam. Hy cho bit c bao

nhiu mui tho mn?

A. 2 B. 0 C. 3 D. 1

Cu 24: X v Y ln lt l cc tripeptit v tetrapeptit c to thnh t cng mt amino axit no mch

h, c mt nhm -COOH v mt nhm -NH2. t chy hon ton 0,1 mol Y thu c sn phm gm

CO2, H2O, N2, trong tng khi lng ca CO2 v H2O l 47,8 gam. Nu t chy hon ton 0,3 mol

X cn bao nhiu mol O2?


Cu 25: Nguyn t nguyn t X c phn lp e lp ngoi cng l 3p. Nguyn t ca nguyn t Y

c phn lp e lp ngoi cng l 3s. Tng s e hai phn lp ngoi cng ca X v Y l 7. Bit

rng X v Y d phn ng vi nhau. S hiu nguyn t ca X v Y ln lt l

A. 18 v 11 B. 13 v 15 C. 12 v 16 D. 17 v 12

Cu 26: Cho cc dung dch c cng nng mol/l: NaHCO3(1); Na2CO3(2); NaCl(3);

NaOH(4). pH ca dung dch tng theo th t l

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

Cu 27: Cho 0,15 mol este X mch h vo 150 gam dung dch NaOH 8%, un nng phn

ng thu phn este xy ra hon ton thu c 165 gam dung dch Y. C cn dung dch Y thu

c 22,2 gam cht rn khan. Hy cho bit X c bao nhiu CTCT tho mn?

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

Cu 28: Hn hp X gm Zn, Fe, Cu. Cho 18,5 gam hn hp X tc dng vi dung dch HCl d

thu c 4,48 lit H2(ktc). Mt khc cho 0,15 mol hn hp X phn ng va vi 3,92 lt kh

Cl2 (ktc). S mol Fe c trong 18,5 gam hn hp X l


Cu 29: Nguyn t khi trung bnh ca Clo bng 35,5. Clo c hai ng v Cl35

17 v Cl37

17 . Phn

trm khi lng ca Cl35

17 c trong axit pecloric l gi tr no sau y? (cho H=1; O=16)

5

A. 30,12% B. 26,92% C. 27,2% D. 26,12%

Cu 30: Cho cc s phn ng sau

- X1 + X2 X4 + H2

- X3 + X4 CaCO3 + NaOH

- X3 + X5 + X2 Fe(OH)3 + NaCl + CO2

Cc cht thch hp vi X3, X4, X5 ln lt l

A. Ca(OH)2, NaHCO3, FeCl3 B. Na2CO3, Ca(OH)2, FeCl2

C. Na2CO3, Ca(OH)2, FeCl3 D. Ca(OH)2, NaHCO3, FeCl2

Cu 31: Ho tan ht hn hp rn gm CaC2, Al4C3 v Ca vo H2O thu c 3,36 lt hn hp kh

X c t khi so vi hiro bng 10. Dn X qua Ni un nng thu c hn hp kh Y. Tip tc cho

Y qua bnh ng nc brom d th c 0,784 lt hn hp kh Z (t khi hi so vi He bng 6,5).

Cc kh o iu kin tiu chun. Khi lng bnh brom tng l

A. 2,09 gam B. 3,45gam C. 3,91 gam D. 1,35 gam

Cu 32: Hp cht hu c X c CTPT C4H6O2Cl2 khi thu phn hon ton trong mi trng

kim un nng thu c cc sn phm ch gm hai mui v nc. Cng thc cu to ng ca X

l

A. C2H5COOC(Cl2)H B. CH3COOCH(Cl)CH2Cl

C. HCOO-C(Cl2)C2H5 D. CH3-COOC(Cl2)CH3

Cu 33: t chy hon ton a mol anehit X (mch h) to ra b mol CO2, c mol H2O (bit

b=a+c). Trong phn ng trng gng 1phn t X ch cho 2 electron. X l anehit c c im g?

A. No, n chc B. Khng no, n chc, c mt ni i

C. No, hai chc D. Khng no, n chc, c hai ni i

Cu 34: iu ch O2 trong phng th nghim t thuc tm, kaliclorat, hiropeoxit, natrinitrat (c

s mol bng nhau). Lng O2 thu c nhiu nht t

A. thuc tm B. kaliclorat C. natrinitrat D. hiropeoxit (H2O2

Cu 35: Este X c cng thc phn t l C5H10O2. Thy phn X trong NaOH thu c ru Y.

hirat ha ru Y thu c hn hp 3 anken. Vy tn gi ca X l

A. tert-butyl fomiat B. iso-propyl axetat

C. etyl propionat D. sec-butyl fomiat

Cu 36: Trn 100 ml dung dch NaOH 2,5M vi 100ml dung dch H3PO4 1,6M thu c dung

dch X. Xc nh cc cht tan c trong X?

A. Na3PO4 v NaOH B. NaH2PO4 v H3PO4

C. Na3PO4 v Na2HPO4 D. Na2HPO4 v NaH2PO4


6

Cu 37: Cho cc cht lng C2H5OH, C6H5OH, C6H5NH2, cc dung dch C6H5ONa, NaOH,

CH3COOH, HCl. Cho cc cht trn tc dng vi nhau tng i mt iu kin thch hp. S cp

cht xy ra phn ng ho hc l

A. 9 B. 10 C. 11 D. 8

Cu 38: Hp cht X c cha vng benzen v c cng thc phn t l C7H6Cl2. Thy phn hon ton

X trong NaOH c d, t0 cao, p cao thu c cht Y c CTPT l C7H7O2Na. Cho bit X c bao nhiu

CTCT tha mn?

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

Cu 39: Cho s sau: Cu + dd mui X khng phn ng;

Cu + dd mui Y khng phn ng.

Cu + dd mui X + dd mui Y phn ng

Vi X, Y l mui ca natri. Vy X,Y c th l

A. NaAlO2, NaNO3 B. NaNO3, NaHCO3

C. NaNO3, NaHSO4 D. NaNO2, NaHSO3

Cu 40: Hp cht X l dn xut ca benzen c CTPT C8H10O2. X tc dng vi NaOH theo t l

mol 1:1. Mt khc cho X tc dng vi Na th s mol H2 thu c ng bng s mol ca X

phn ng. Nu tch mt phn t H2O t X th to ra sn phm c kh nng trng hp to polime.

S CTCT ph hp ca X l

A. 9 B. 2 C. 6 D. 7

Cu 41: Cho cc cht sau C2H5OH(1), CH3COOH(2), CH2=CH-COOH(3), C6H5OH(4), p-CH3-

C6H4OH(5), C6H5-CH2OH(6). Sp xp theo chiu tng dn linh ng ca nguyn t H trong

nhm -OH ca cc cht trn l

A. (1), (5), (6), (4), (2), (3) B. (1), (6), (5), (4), (2), (3)

C. (1), (6), (5), (4), (3), (2) D. (3), (6), (5), (4), (2), (1)

Cu 42: Tin hnh trng hp 1mol etilen iu kin thch hp, em sn phm sau trng hp tc

dng vi dung dch brom th lng brom phn ng l 36 gam. Hiu sut phn ng trng hp v

khi lng poli etilen (PE) thu c l

A. 85% v 23,8 gam B. 77,5 % v 22,4 gam

C. 77,5% v 21,7 gam D. 70% v 23,8 gam

Cu 43: Mt hp cht hu c X c CTPT C3H10O3N. Cho X phn ng vi NaOH d, c cn

dung dch sau phn ng thu c cht rn Y (ch c cc hp cht v c) v phn hi Z (ch c

mt hp cht hu c no, n chc mch khng phn nhnh). Cng thc cu to ca X l

A. HCOONH3CH2CH2NO2 B. HO-CH2-CH2-COONH4

C. CH3-CH2-CH2-NH3NO3 D. H2N-CH(OH)CH(NH2)COOH

7

Cu 44: Ho tan hon ton 74 gam hn hp X gm FeO, Fe3O4, Fe2O3 bng dung dch H2SO4

long d sinh ra 178 gam mui sunfat. Nu cng cho 74 gam hn hp X trn phn ng vi lng

d kh CO nhit cao v dn sn phm kh qua dung dch nc vi trong d th khi lng

(gam) kt ta to thnh l bao nhiu? (cc phn ng xy ra hon ton)

A. 130 B. 180 C. 150 D. 240

Cu 45: phn bit hai ng phn glucoz v fructoz ngi ta c th dng

A. nc vi trong B. nc brom

C. dung dch AgNO3/NH3 D. Cu(OH)2/NaOH

Cu 46: Cho 10,32 gam hn hp X gm Cu, Ag tc dng va vi 160 ml dung dch Y gm

HNO31M v H2SO4 0,5 M thu c kh NO duy nht v dung dch Z cha m gam cht tan. Gi

tr ca m l

A. 20,36 B. 18,75 C. 22,96 D. 23,06

Cu 47: Amino axit mch khng phn nhnh X cha a nhm -COOH v b nhm -NH2. Khi cho

1mol X tc dng ht vi axit HCl thu c 169,5 gam mui. Cho 1 mol X tc dng ht vi dung

dch NaOH thu c 177 gam mui.CTPT ca X l

A. C4H7NO4 B. C3H7NO2 C. C4H6N2O2 D. C5H7NO2

Cu 48: 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) gim, bnh (2) tng. B. Bnh (1) khng i, bnh (2) gim.

C. Bnh (1) tng, bnh (2) gim. D. Bnh (1) khng i, bnh (2) tng.

Cu 49: Cho hn hp dng bt gm Al v Fe vo 100 ml dung dch CuSO4 0,75 M, khuy k

hn hp phn ng xy ra hon ton thu c 9 gam cht rn A gm hai kim loi. ho tan

hon ton cht rn A th cn t nht bao nhiu lt dung dch HNO3 1M (bit phn ng to ra sn

phm kh NO duy nht)?

A. 0,6 lit B. 0,5 lit C. 0,4 lt D. 0,3 lit


Cu 50: Cho 11,6 gam FeCO3 tc dng va vi dung dch HNO3 thu c hn hp kh (CO2,

NO) v dung dch X. Khi thm dung dch HCl d vo dung dch X th ho tan ti a c bao

nhiu gam bt Cu (bit c kh NO bay ra)

A. 28,8 gam B. 16 gam C. 48 gam D. 32 gam

----------- HT ----------

8

PHN P N V GII CHI TIT

Cu 1: Chn p n A

A.Tha mn CH3NH2, C2H5NH2 lm qu tm chuyn mu xanh. HCOOH ha qu tm.

B. C6H5NH2 khng lm i mu qu tm.

C. H2N-CH2-COOH khng lm i mu qu tm.

D. C6H5OH khng lm i mu qu tm. Chn A

Cu 2: Chn p n B

Ch : thuy phan

Sac glu fruc c glu v fruc u c kh nng trng Ag trong NH3.Tuy nhin

ch c Glu c kh nng tc dng vi nc Br2.

Ta c :

2

Ag

Sac phan ung

Br Glu

n 0,1.2 0,1.2 0,4Glu : 0,1 a 43,234,2n 0,1

342 Fruc : 0,1 b 16n n 0,1 Chn B

Cu 3: Chn p n D

Ta c : 3 23

2

HCO OH du

CO

Ba

n 0,1n 0,1 0,09 m 0,09.197 17,73

n 0,09 Chn D

Cu 4: Chn p n B

Ta c :

BTKL

BTE

Na : a 23a 137b 18,3 a 0,218,3

Ba : b b 0,1a 2b 0,2.2

tr li nhanh nht cu hi ny cc bn hy suy ngh tr li cu hi sau : Kt ta cc i c th

l bao nhiu ?Khi C chui vo u?

V ax2

BTNT.Ba BTNT.CM

Ba COn 0,1 n 0,1 n 0,1

Gi tr kt ta max khi C chui vo ax2

3 BTNT(Ba Na C) M

CO

3

BaCO : 0,1n 0,3

NaHCO : 0,2 Chn B

Cu 5: Chn p n C

Thuy phan Khong ben

3 2 3

Thuy phan

3 2

Thuy phan

3 3

(1) CH CH(OH) CH CHO

(2) CH CH CHO

(3) CH COCH

or

Thuy phan Khong ben

3 2 3 3 2

Thuy phan Khong ben

2

Thuy phan

(4) CH CH C(OH) CH CH COOH

(5) HO CH OH HCHO

(6) HCOONa (HCOOH)

Chn C

Cu 6: Chn p n B

Ch : Zn(OH)2 tan (to phc) trong NH3.

Al(OH)3 khng tan trong NH3 d.Ch tan trong kim mnh nh NaOH,KOH

9

H2 khng kh c cc oxit t Al2O3 v trc. Chn B

Cu 7: Chn p n B

Ta c : dong trung ngung2 2 2 24 6

HOOC CH COOH H N CH NH nilon 6,6

Chn B

Cu 8: Chn p n B

HNO3 ti thiu khi ton b N trong HNO3 bin thnh NO2.

Ta c : 2 2 3

BTE Min

FeS e NO HNOn 0,1 n 0,1.15 1,5 n 1,5 n V 1,5.22,4 33,6

Chn B

Cu 9: Chn p n C

Ta c : 8% 3HF H

4 0,016n 0,2 n 0,2.0,08 0,016 H 8.10

20 2

PH 2,097 Chn C

Cu 10: Chn p n B

V phn ng hon ton v : o2 6duong ch

Y

2

C H : 0,2M 16 Y :

H : 0,2

3

BTNT.C

CaCOm 0,2.2.100 40 Chn B

Cu 11: Chn p n D

Ta c th s dng cng thc tnh nhanh vi n axit khc nhau th s este ti a c th thu c l :

es es2n .(n 1)

te n 2 te 62

Chn D

Cu 12: Chn p n A

Ta c : 3 2 3 24Zn NO 7OH 4ZnO NH 2H Chn A

Cu 13: Chn p n A

Ch : Mt cht hu c nu cha C,H v 1 nguyn t khc X.Th X cng c ha tr cao th s

ng phn cng cao . Chn A


10

Cu 14: Chn p n B

(1) .Sai trong PTN ngi ta iu ch bng 2 2

FeS 2HCl FeCl H S .

(2).ng v cc cht ny u c th tng hoc gim s oxi ha .

(3).Sai.Khi xy ra n mn in ha th kim loi mnh b n mn cn kim loi yu c bo v

(4).ng.V 2 2BaO H O Ba(OH) .

(5).ng v 2OH Ca2

3 3 3HCO CO CaCO

(6).ng v 2 42 2

H SO Cu

3 4 3 2

Fe CuFe O

Fe Fe Chn B

Cu 15: Chn p n D

X tc dng vi Na c kh H2 X phi cha nhm OH hoc COOH.

Khi phi m s ng phn.Cc bn cn nh s ng phn ca cc gc quan trng sau :

3 2 5CH C H c 1 ng phn

3 7C H c 2 ng phn

4 9C H c 4 ng phn

C5H11 c 8 ng phn

Vy X l CH 3COOH c 1 ng phn.

C3H 7OH c 2 ng phn.

HOC CH2 OH c 1 ng phn. Chn D

Cu 16: Chn p n C

Cho X

X Y

X

M 9,6n 1 V M 16

m 9,6 Y c H2 d.

Nu RH l anken :

BTKL

Y anken anken

2

anken : 0,49,6 9,6 0,6.2n 0,6 n 0,4 X M 21

H : 0,616 0,4 (loi)

Nu RH l ankin :

BTKL

Y ankin ankin 3 4

2

ankin : 0,29,6 9,6 0,8.2n 0,6 n 0,2 X M 40 C H

H : 0,816 0,2Chn

C

Cu 17: Chn p n C

X l : HOCH2CH2 COOCH2 CH2COOH

Y l : HOCH2 CH2COONa

Z l : HOCH2 CH2COOH Chn C

Cu 18: Chn p n C

11

(1) 2 3 3 2 3 2

3Na CO 2AlCl 3H O 2Al(OH) 3CO 6NaCl

(3) 2 33 23Fe NO 4H 3Fe NO 2H O

(5) 3 2 2H HCO CO H O Chn C

Cu 19: Chn p n C

Ta c :2

2 3

COH3

Na CO : aX n 0,15 n 0,045 0,15 a 0,045 a 0,105

KHCO : b

BTNT.Cn (a b) 0,045 0,15 b 0,09

2 3 3

0,105 0,09Na CO 0,2625 KHCO 0,225

0,4 0,4 Chn C

Cu 20: Chn p n A

V A ch c ankan v anken nn nu H = 100% th s mol kh s tng gp 2 ln.

Gi s :

4 10

ABTKL

C H A

A

m 58 4 1n 1 m 58 n n

3 3M 21,75.2 43,5

H 33,33% Chn A

Cu 21: Chn p n B

Cu 22: Chn p n C

V axit n chc nn ta c : RCOOH Na

a an n R 1 HCOOH

R 45 2.23Chn C

Cu 23: Chn p n A

C 2 mui tha mn l : CuSO4 v Fe2(SO4)3 Chn A

Cu 24: Chn p n B

Gi aminoaxit l : n 2n 1 2 4n 8n 2 5 4C H O N Y : C H O N

t Y : 2O

4n 8n 2 5 4 2 2 2C H O N 4nCO 2N 4n 1 H O

2 2

BTKL

CO H Om m 0,1.4n.44 0,1(4n 1).18 47,8 n 2

2O

6 11 5 3 2 2 2X : C H O N 6CO 5,5H O 1,5N

2

BTNT.O pu

O

0,3.6.2 0,3.5,5 0,3.4n 2,025

2 Chn B

Cu 25: Chn p n D

Nhn vo p n ta loi A ngay v Z = 18 l kh him Ar.

D thy : D tha mn Chn D


12

Cu 26: Chn p n D

Ch : PH cng ln th tnh bazo cng mnh v ngc li . Chn D

Cu 27: Chn p n A

Ta c : es

es

teBTKL

te X

NaOH

n 0,15

m 165 150 15 M 100150.8n 0,3

100.40

BTKL

3 5

NaOH : 0,1522,2 22,2 0,15(40 R 44 23) R 41 C H

RCOONa : 0,15

OO

OO

OO

2 2 3

3 3

2 3 3

CH CH CH C CH

X : CH CH CHC CH

CH C CH C CH

Chn A

Cu 28: Chn p n C

Ch : T mt hn hp ban u nu chia ra nhiu phn khc nhau th t l % v khi lng hay

s mol trong tng phn l khng i.

Ta c :

BTKL

BTE

BTE

65a 56b 64c 18,5Zn : a

2a 2b 0,2.218,5 Fe : b b 0,1

k(a b c) 0,15Cu : c

k(2a 3b 2c) 0,175.2

Chn C

Cu 29: Chn p n D

Ta c : 3517

35X 37(100 X)% Cl X 35,5 X 75%

100

35

17 4

0,75.35% Cl trong HClO 26,12%

1 35,5 4.16 Chn D

Cu 30: Chn p n C

(3) 2 3 3 2 3 23Na CO 2FeCl 3H O 2Fe(OH) 3CO 6NaCl

(2) 2 3 32

Na CO Ca OH CaCO 2NaOH

(1) 2 22

Ca 2H O Ca OH H Chn C

Cu 31: Chn p n A

Ta c : X

X Y Z Binh Brom tan g

X

n 0,15m 3 m m m

M 20

BTKL

Z Binh Brom tan g

0,784m .4.6,5 0,91 m 3 0,91 2,09

22,4 Chn A

Cu 32: Chn p n D

13

Cu 33: Chn p n B

V b c = a X c 2 lin kt trong phn t.

1 X ch cho 2 electron X l andehit n chc. Chn B

Cu 34: Chn p n B

0t

4 2 4 2 22KMnO K MnO MnO O

0t

3 2

3KClO KCl O

2

2 2 2 22 2H O H O O

0t

3 2 2NaNO NaNO 0,5.O

Chn B

Cu 35: Chn p n D

3 2 3CH CH(OH) CH CH tch nc cho 3 anken Chn D

Cu 36: Chn p n D

Gp bi ton ny cc bn c tng tng rng OH i cp ln lt H trong H3PO4.

Ta c :

2

4

3 4 2 4

HPO : 0,09OH : 0,25

H PO : 0,16 H PO : 0,07 Chn D

Cu 37: Chn p n A

Cc cp cht xy ra phn ng l :

C2H5OH + CH3COOH C6H5ONa + CH3COOH

C2H5OH+HCl C6H5ONa + HCl

C6H5OH +NaOH NaOH + HCl

C6H5NH2+ CH3COOH NaOH + CH3COOH

C6H5NH +HCl

Chn A

Cu 38: Chn p n A

X phi c dng : 2 6 4Cl CH C H Cl (3) ng phn theo v tr trong vng benzen. Chn A

Cu 39: Chn p n C

Cu 40: Chn p n C


14

Chn C

Cu 41: Chn p n B

Cu 42: Chn p n C

Ch : Phn cha b trng hp s c phn ng vi Brom.

Ta c : 2Br

36 1 0,225n 0,225 H 77,5%

160 1

BTKL

PEm 0,775.28 21,7 Chn C

Cu 43: Chn p n C

Ta loi A,B,D v trong Y s thu c cht hu c RCOONa Chn C

Cu 44: Chn p n A

Bi ton kh n gin v c nhiu cch gii .

Cch 1 :

BTKL4BTNT.Fe

BTKL2 42 3 3

FeSO : aFeO : a 72a 160b 74 a 0,2574 gam

Fe SO : bFe O : b b 0,35152a 400b 178

ox

2

BTNT.O BTNT.CTrong it

O COn a 3b 1,3 n 1,3 m 130 Chn A

Cch 2:

Ta c : ax2

2H O it 4

Fe : m gam Fe : m gam74gam 178gam

O : a mol n a n SO : a mol

BTKL BTNT.O Cm 16a 74 a 1,3

m 1,3.100 130m 96a 178 m 53,2

Chn A

C th dng thm cch s dng bo ton in tch na.

Cu 45: Chn p n B

Ch : glucoz v fructoz ch c th phn bit bng nc Brom. Chn B

Cu 46: Chn p n C

Ta c: 3

Cu AgH

2

4NO

BTNT.N

33 2

m 10,32n 0,16 0,16 0,32

n 0,16 m 22,96 SO : 0,08

NO : 0,16 0,08 0,084H NO 3e NO 2H O

Chn C

15

Cu 47: Chn p n A

D dng suy ra X c 1 nhm NH2 v 2 nhm COOH do Chn A

Cu 48: Chn p n B

: ons ons2 2H Cl 2HCl n c t P c t

2 22CO O 2CO n 1 P Chn B

Cu 49: Chn p n C

Hn hp A l Cu v Fe .Ta c : Min

e

Cu : 0,075A n 0,075.2 0,075.2 0,3

Fe : 0,075

S dng phng trnh : 3 24H NO 3e NO 2H O 3HNO

n 0,4 Chn C

Cu 50: Chn p n D

Ta c : 3

3

BTNT.Fe

FeCO

3

Fe : 0,1n 0,1

NO : 0,3

S dng : 3 24H NO 3e NO 2H O

2

HCl / Cu BTDT

Cu

2

Fe : 0,1

Cl : 0,3.4 1,2 a 0,5 m 64.0,5 32

Cu : a

Chn D

C th BTE cng cho kt qu kh nhanh .

----------- HT ----------


16

S GIO DC V O TO

THI BNH

THI CHN HC SINH GII LP 12

NM HC 2010 2011; Mn thi: HA HC

Thi gian lm bi: 90 pht

M thi 686

Cu 1: C bao nhiu nguyn t ha hc m nguyn t ca n c electron cui cng in vo

phn lp 4s ?

A. 2. B.12. C. 9. D. 1.

Cu 2: Hp cht ion G to nn t cc ion n nguyn t M2+ v X2-. Tng s ht (ntron,

proton, electron) trong phn t G l 84, trong s ht mang in nhiu hn s ht khng mang

in l 28 ht. S ht mang in ca ion X2- t hn s ht mang in ca ion M2+ l 20 ht. V tr

ca M trong bng tun hon l

A. 8, chu k 2, nhm VIA.

B. 26, chu k 4, nhm VIIIB.

C. 12, chu k 3, nhm IIA. D. 20, chu k 4, nhm IIA.

Cu 3: Cho phng trnh ha hc:

a FeSO4 + b KMnO4 + c NaHSO4 x Fe2(SO4)3 + y K2SO4 + z MnSO4 + t Na2SO4 + u H2O

vi a,b,c,x,y,z,t,u l cc s nguyn ti gin. Tng h s cc cht trong phng trnh ha hc trn

l

A. 28. B. 46. C. 50. D. 52.

Cu 4: Trong phng th nghim, hirohalogenua (HX) c iu ch t phn ng sau:

NaX(rn) + H2SO4 (c, nng) NaHSO4 (hoc Na2SO4) + HX (kh).

Hy cho bit phng php trn c th dng iu ch c hirohalogenua no sau y ?

A. HF v HCl. B. HBr v HI.

C. HCl, HBr v HI. D. HF, HCl, HBr, HI.

Cu 5: Ha tan 3 gam CH3COOH vo nc to ra 250 ml dung dch c in ly =1,4%.

Nng cn bng ca axit axetic v pH ca dung dch ln lt bng:

A. 0,1972M v 3,15. B. 0,1972M v 2,55.

C. 0,0028M v 1,55. D. 0,0028M v 2,55.

Cu 6: nhit khng i, h cn bng no b chuyn dch theo chiu thun khi tng p sut

ca h ?

A. N2(kh) + 3H2(kh) 2NH3(kh) B. 2SO3(kh) 2SO2(kh) + O2(kh)

C. 2NO(kh) N2(kh) + O2 (kh) D. 2CO2(kh) 2CO(kh) + O2 (kh)

Cu 7: Hp th hon ton 4,48 lt CO2 (ktc) vo 200ml dung dch cha Na2CO3 0,5M v

NaOH 0,75M thu c dung dch X. Cho dung dch BaCl2 d vo dung dch X thu c kt ta

c khi lng l

A. 9,85gam. B. 29,55 gam. C. 19,7gam. D. 39,4 gam.

Cu 8: C 500 ml dung dch X cha Na+, NH4+, CO3

2- v SO4

2-. Ly 100 ml dung dch X tc

dng vi lng d dung dch HCl thu c 2,24 lt kh. Ly 100 ml dung dch X cho tc dng vi

lng d dung dch BaCl2 thu c 43 gam kt ta. Ly 200 ml dung dch X tc dng vi lng d

dung dch NaOH thu c 8,96 lt kh NH3. Cc phn ng hon ton, cc th tch kh u o ktc.

Tnh tng khi lng mui c trong 300 ml dung dch X ?

A. 71,4 gam. B. 23,8 gam. C. 86,2 gam. D.119 gam.


17

Cu 9: Chn p n A

Cho cc trng hp sau:

(1). O3 tc dng vi dung dch KI.

(2). KClO3 tc dng vi dung dch HCl c, un nng.

(3). Axit HF tc dng vi SiO2.

(4). un nng dung dch bo ha gm NH4Cl v NaNO2.

(5). MnO2 tc dng vi dung dch HCl c, un nng.

(6). Cho kh NH3 qua CuO nung nng.

(7). Kh SO2 tc dng vi nc Cl2.

S trng hp to ra n cht l

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

Cu 10: Nhit phn hon ton R(NO3)2 (vi R l kim loi) thu c 8 gam mt oxit kim loi v

5,04 lt hn hp kh X gm NO2 v O2 (o ktc). Khi lng ca hn hp kh X l 10 gam. Xc

nh cng thc ca mui R(NO3)2 ?

A. Mg(NO3)2. B. Zn(NO3)2 . C. Fe(NO3)2. D. Cu(NO3)2 .

Cu 11: Cho cc cp cht sau:

(1). Kh Cl2 v kh O2.

(6). Dung dch KMnO4 v kh SO2.

(2). Kh H2S v kh SO2. (7). Hg v S.

(3). Kh H2S v dung dch Pb(NO3)2. (8). Kh CO2 v dung dch NaClO.

(4). Kh Cl2 v dung dch NaOH. (9). CuS v dung dch HCl.

(5). Kh NH3 v dung dch AlCl3.

(10). Dung dch AgNO3 v dung dch Fe(NO3)2.

S cp cht xy ra phn ng ha hc nhit thng l

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

Cu 12: Cho dung dch AgNO3 tc dng vi dung dch cha cht X thy to kt ta T mu vng.

Cho kt ta T tc dng vi dung dch HNO3 d thy kt ta tan. Cht X l

A. KCl. B. K3PO4. C. KI. D. KBr.

Cu 13: Cho 3,76 gam hn hp X gm Mg v MgO c t l mol tng ng l 14:1 tc dng ht

vi dung dch HNO3 th thu c 0,448 lt mt kh duy nht (o ktc) v dung dch Y. C cn

cn thn dung dch Y thu c 23 gam cht rn khan T. Xc nh s mol HNO3 phn ng ?

A. 0,28 B. 0,34 C. 0,36 D. 0,32

Cu 14: Dung dch X cha 14,6 gam HCl v 22,56 gam Cu(NO3)2. Thm m (gam) bt st vo

dung dch X, sau khi phn ng xy ra hon ton thu c hn hp kim loi c khi lng l

0,5m (gam) v ch to kh NO (sn phm kh duy nht ca N+5). Gi tr ca m l

A. 1,92. B. 20,48. C. 9,28. D. 14,88.

Cu 15: Ha tan 10,65 gam hn hp gm mt oxit kim loi kim v mt oxit kim loi kim th

bng dung dch HCl d c dung dch X. C cn dung dch X, ly mui khan em in phn

nng chy hon ton th thu c 3,36 lt kh (o ktc) anot v a (gam) hn hp kim loi

catot. Gi tr ca a l

A. 5,85. B. 8,25. C. 9,45. D. 9,05.

18

Cu 16: Cho a (gam) st vo dung dch cha y mol CuSO4 v z mol H2SO4 long, sau phn ng

hon ton thu c kh H2, a (gam) ng v dung dch ch cha mt cht tan duy nht. Mi quan

h gia y v z l

A. y = 5z. B. y = z. C. y = 7z. D. y = 3z.

Cu 17: Ha tan hn hp X gm Cu v Fe2O3 trong 400 ml dung dch HCl x (M) thu c dung

dch Y v cn li 1,0 gam Cu khng tan. Nhng thanh Mg vo dung dch Y, sau khi phn ng hon

ton nhc thanh Mg ra thy khi lng tng thm 4,0 gam so vi khi lng thanh Mg ban u v c

1,12 lt kh H2 (o ktc) thot ra (gi thit ton b lng kim loi thot ra u bm ht vo thanh

Mg). Khi lng Cu trong X v gi tr ca x ln lt l:

A. 4,2 gam v 0,75M. B. 4,2 gam v 1M.

C. 3,2 gam v 2M. D. 3,2g gam v 0,75M.

Cu 18: Ha tan hn hp gm Fe v FexOy cn va 0,1 mol H2SO4 c thu c 0,56 lt kh

SO2 (sn phm kh duy nht, o ktc) v dung dch X ch cha mui Fe(III). C cn dung dch

X thu c khi lng mui khan l

A. 8,0 gam. B. 10,0 gam. C. 16,0 gam. D. 20,0 gam.

Cu 19: Cho kh CO qua hn hp T gm Fe v Fe2O3 nung nng thu c hn hp kh B v hn hp

cht rn D. Cho B qua dung dch Ca(OH)2 d thu c 6 gam kt ta. Mt khc, ha tan hn hp D

bng dung dch H2SO4 c, nng, d thu c 0,18 mol SO2 (sn phm kh duy nht) v 24 gam

mui. Phn trm s mol ca Fe trong hn hp T l

A. 75%. B. 45%. C. 80%. D. 50%.

Cu 20: Cho cc cht sau: HOOC-COONa, K2S, H2O, KHCO3, Al(OH)3, Al, KHSO4, Zn,

(NH4)2SO3. S cht c tnh lng tnh l

A. 5. B. 4. C. 6. D. 7.

Cu 21: Ha tan 2m (gam) kim loi M bng dung dch HNO3 c, nng, d hay ha tan m (gam)

hp cht X (hp cht ca M vi lu hunh) cng trong dung dch HNO3 c, nng, d th cng

thu c kh NO2 (sn phm kh duy nht) c th tch bng nhau cng iu kin nhit v p

sut. Gi s nguyn t lu hunh ch b oxi ha ln mc cao nht. Kim loi M v cng thc phn

t ca X ln lt l

A. Cu v CuS. B. Cu v Cu2S. C. Mg v MgS. D. Fe v FeS.

Cu 22: Cho hn hp X gm 8,4 gam Fe v 6,4 gam Cu vo dung dch HNO3. Sau khi phn ng

hon ton thu c 3,36 lt kh NO (l sn phm kh duy nht, o ktc). Khi lng mui thu

c sau phn ng l

A. 36,3 gam. B. 41,1gam. C. 41,3 gam. D. 42,7 gam.

Cu 23: Hn hp kh X c th tch 4,48 lt (o ktc) gm H2 v vinylaxetilen c t l mol

tng ng l 3:1. Cho hn hp X qua xc tc Ni nung nng thu c hn hp kh Y c t khi so

vi H2 bng 14,5. Cho ton b hn hp Y trn t t qua dung dch nc brom d (phn ng

hon ton) th khi lng brom phn ng l


Cu 24: C bao nhiu ng phn cu to, mch h c cng thc phn t C5H8 tc dng vi H2

d (xc tc thch hp) thu c sn phm isopentan ?

A. 2. B. 4. C. 6. D. 3.


19

Cu 25: Khi nung butan vi xc tc thch hp thu c hn hp T gm CH4, C3H6, C2H4, C2H6,

C4H8, H2 v C4H10 d. t chy hon ton hn hp T thu c 8,96 lt CO2 (o ktc) v 9,0

gam H2O. Mt khc, hn hp T lm mt mu va ht 12 gam Br2 trong dung dch nc brom.

Hiu sut phn ng nung butan l

A. 75%. B. 65%. C. 50%. D. 45%.

Cu 26: Thc hin cc th nghim sau:

Th nghim 1: Trn 0,015 mol ancol no X vi 0,02 mol ancol no Y ri cho hn hp tc dng ht vi Na

c 1,008 lt H2.

Th nghim 2: Trn 0,02 mol ancol X vi 0,015 mol ancol Y ri cho hn hp tc dng ht vi Na c

0,952 lt H2.

Th nghim 3: t chy hon ton mt lng hn hp ancol nh trong th nghim 1 thu c

6,21 gam hn hp gm CO2 v H2O.

Bit th tch cc khi o ktc v cc ancol u mch h. Cng thc 2 ancol X v Y ln lt l

A. C3H6(OH)2 v C3H5(OH)3. B. C2H4(OH)2 v C3H5(OH)3.

C. CH3OH v C2H5OH. D. C2H5OH v C3H7OH.

Cu 27: t chy hon ton 8,0 gam hn hp X gm hai ankin (th kh nhit thng) thu

c 26,4 gam CO2. Mt khc, cho 8,0 gam hn hp X tc dng vi dung dch AgNO3 trong

NH3 d n khi phn ng hon ton thu c lng kt ta vt qu 25 gam. Cng thc cu to

ca hai ankin trn l

A. CHCH v CH3-CCH. B. CHCH v CH3-CH2-CCH.

C. CH3-CCH v CH3-CH2-CCH. D. CHCH v CH3-CC-CH3.

Cu 28: Cht A mch h c cng thc CxHyCl2. Khi cho tt c cc ng phn ca A tc dng

hon ton vi dung dch NaOH un nng thu c hn hp sn phm trong c ba ancol c

kh nng ha tan c Cu(OH)2 to thnh dung dch mu xanh lam. Cng thc phn t ca A l

A. C5H10Cl2. B. C4H6Cl2. C. C4H8Cl2. D. C3H6Cl2.

Cu 29: Cho cc cht sau:

1) axit 2-hiroxipropan-1,2,3-tricacboxylic (c trong qu chanh)

2) axit 2-hiroxipropanoic (c trong sa chua).

3) axit 2-hiroxibutanioic (c trong qu to).

4) axit 3-hiroxibutanoic (c trong nc tiu ca ngi bnh tiu ng).

5) axit 2,3-ihiroxibutanioic (c trong ru vang).

Th t sp xp cc axit trn theo chiu tnh axit mnh dn t tri sang phi l

A. 2,4,5,3,1. B. 4,2,3,5,1. C. 4,3,2,1,5. D. 2,3,4,5,1.

Cu 30: Hn hp T gm hai axit cacboxylic no mch h.

- Th nghim 1: t chy hon ton a (mol) hn hp T thu c a (mol) H2O.

- Th nghim 2: a (mol) hn hp T tc dng vi dung dch NaHCO3 d thu c 1,6a (mol) CO2.

Phn trm khi lng ca axit c phn t khi nh hn trong T l

A. 25,41%. B. 46,67%. C. 40,00%. D. 31,76%.

Cu 31: Oxi ha anehit X n chc bng O2 (xc tc thch hp) vi hiu sut phn ng l 75%

thu c hn hp Y gm axit cacboxylic tng ng v anehit d. Trung ha axit trong hn hp

Y cn 100 ml dung dch NaOH 0,75M ri c cn dung dch sau phn ng thu c 5,1 gam cht

rn khan. Nu cho hn hp Y tc dng hon ton vi dung dch AgNO3 trong NH3 d, un nng

th thu c khi lng Ag l


20

Cu 32: x phng ha 1,0 kg cht bo c ch s axit bng 7, ngi ta un cht bo vi

142 gam NaOH trong dung dch. Sau khi cc phn ng xy ra hon ton, trung ha NaOH d

cn va 50 ml dung dch HCl 1M. Khi lng glixerol thu c t phn ng x phng ha l

A. 120,0 gam. B. 145,2 gam. C. 103,5 gam. D. 134,5 gam

Cu 33: Este n chc X khng c nhnh, ch cha C,H,O v khng cha cc nhm chc khc.

Bit t khi hi ca X so vi O2 l 3,125. Khi cho 15 gam X tc dng va vi dung dch

NaOH un nng, c cn dung dch sau phn ng thu c 21 gam mui khan. Cng thc cu to

ca X l

A. CH3COO-CH2-CH=CH2. B. HCOO-CH2-CH2 CH=CH2.

C. D.

Cu 34: Cho 15,84 gam este no, n chc, mch h vo cc cha 30ml dung dch MOH 20%

(d=1,2g/ml) va vi M l kim loi kim. Sau phn ng hon ton, c cn dung dch thu c

cht rn X. t chy hon ton X thu c 9,54gam M2CO3 v hn hp gm CO2, H2O. Kim

loi M v cng thc cu to ca este ban u l:

A. K v HCOO-CH3. B. K v CH3COOCH3.

C. Na v CH3COOC2H5. D. Na v HCOO-C2H5.

Cu 35: Cho mt ipeptit Y c cng thc phn t C6H12N2O3. S ng phn peptit ca Y (ch

cha gc -amino axit) mch h l

A. 5. B. 4. C. 7. D. 6.

Cu 36: Hp cht X cha vng benzen, c cng thc phn t CxHyN. Khi cho X tc dng vi

dung dch HCl thu c mui Y c cng thc dng RNH3Cl (R l gc hirocacbon). Phn trm

khi lng ca nit trong X l 13,084%. S ng phn cu to ca X tha mn cc iu kin trn

l

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

Cu 37: X l tetrapeptit Ala-Gly-Val-Ala, Y l tripeptit Val-Gly-Val. un nng m (gam) hn

hp cha X v Y c t l s mol ca X v Y tng ng l 1:3 vi dung dch NaOH va . Phn

ng hon ton thu c dung dch T. C cn cn thn dung dch T thu c 23,745 gam cht rn

khan. Gi tr ca m l

A. 68,1. B. 17,025. C. 19,455. D. 78,4

Cu 38: Cho 0,1 mol -amino axit X tc dng va vi 50 ml dung dch HCl 2M. Trong mt

th nghim khc, cho 26,7 gam X vo dung dch HCl d, sau c cn cn thn dung dch thu c

37,65 gam mui khan. Vy X l:

A. Alanin. B. Axit glutamic. C. Valin. D. Glyxin.

Cu 39: Thy phn m (gam) xenluloz trong mi trng axit. Sau mt thi gian phn ng, em

trung ha axit bng kim, sau cho hn hp tc dng hon ton vi dung dch AgNO3 trong

NH3 thu c m (gam) Ag. Xc nh hiu sut ca phn ng thy phn xenluloz ?

A. 80%. B. 66,67%. C. 75%. D. 50%.

Cu 40: im ging nhau ca glucoz v saccaroz l

A. u phn ng vi Cu(OH)2 to dung dch mu xanh lam.

B. u phn ng vi dung dch AgNO3 trong NH3 to Ag.

C. u b thu phn trong dung dch axit.

D. u phn ng vi H2 c xc tc Ni nung nng cng thu c mt ancol a chc.

CH3-CH-CH2

CH2-O C=O

CH2-CH2-C=O

CH2-CH2-O

21

Cu 41: C 49,125 gam cao su buna-S phn ng va ht vi 30 gam brom trong CCl4. T l s

mt xch stiren v butaien trong loi cao su trn tng ng l

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

Cu 42: Trong s cc loi t sau: t lapsan, t nitron, t visco, t nilon-6,6, t axetat, t capron,

t nilon-7. C bao nhiu loi t thuc loi t nhn to ?

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

Cu 43: Hn hp X gm ancol metylic v ancol A no, n chc, mch h. Cho 7,6 gam X tc dng

vi Na d thu c 1,68 lt H2 (o ktc). Mt khc oxi ha hon ton 7,6 gam X bng CuO nung

nng ri cho ton b sn phm thu c tc dng hon ton vi dung dch AgNO3 trong NH3 d thu

c 21,6 gam kt ta. Cng thc cu to ca A l

A. C2H5OH. B. CH3CH2CH2OH.

C. CH3CH(OH)CH3. D. CH3CH2CH(OH)CH3.

Cu 44: Hn hp X gm mt anehit v mt ankin c cng s nguyn t cacbon. t chy hon

ton a (mol) hn hp X thu c 3a (mol) CO2 v 1,8a (mol) H2O. Hn hp X c s mol 0,1 tc

dng c vi ti a 0,14 mol AgNO3 trong NH3 (iu kin thch hp). S mol ca anehit trong

0,1 mol hn hp X l

A. 0,01. B. 0,02. C. 0,03. D. 0,04.

Cu 45: Cho s sau: X + H2 0,txt

ancol X1.

X + O2 0,txt axit hu c X2.

X1 + X2 0,txt

C6H10O2 + H2O.

Cng thc cu to ca X l

A. CH3CH2CHO. B. CH2=CH-CHO.

C. CH3-CHO. D. CH2=C(CH3)-CHO.

Cu 46: Cho s phn ng sau:

Anehit no, mch h X1 otNiH ,/2 X2

OH2 X3 xtpto ,,

Cao su buna.

Anehit no mch h X4 otNiH ,/2 X5 22

, HOH X3 xtpto ,,

Cao su buna.

Hy cho bit: khi cho X1 v X4 vi khi lng bng nhau tc dng hon ton vi dung dch

AgNO3 trong NH3 un nng, cht no to ra lng Ag nhiu hn ?

A. X4. B. X1. C. bng nhau. D. khng xc nh c.

Cu 47: Hp cht X c cng thc phn t l C5H8O2. Cho 10 gam X tc dng hon ton, va

vi dung dch NaOH thu c dung dch Y. Ly ton b dung dch Y tc dng hon ton vi

dung dch AgNO3 trong NH3 un nng thu c 43,2 gam Ag. S ng phn cu to ca X tha

mn cc iu kin trn l

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

Cu 48: Cho cc cht sau: toluen, etilen, xiclopropan, stiren, vinylaxetilen, etanal, imetyl

xeton, propilen. S cht lm mt mu dung dch KMnO4 nhit thng l

A. 5. B. 6. C. 7. D. 4.

Cu 49: t chy hon ton 0,1 mol cht hu c X l dn xut ca benzen thu c CO2 c khi

lng nh hn 35,2 gam. Bit rng a (mol) X phn ng va vi 500 ml dung dch NaOH

2a(M). Cng thc cu to ca X l

A. C6H5-CH2OH. B. HO-C6H4-CH2OH.

C. HO-CH2-C6H4-COOH. D. C6H4(OH)2.


22

Cu 50: Cho cc cht sau: phenol, kh sunfur, toluen, ancol benzylic, isopren, axit metacrylic,

vinyl axetat, phenyl amin, axit benzoic. S cht phn ng c vi dung dch nc brom nhit

thng l

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

----------- HT ----------


23

P N V GII CHI TIT

Cu 1: Chn p n A

Theo trt t nng lng ca cc AO th ta c 1s

24

Cu 7: Chn p n A

y l bi ton p dng BTNT kh hay.iu quan trng l cc bn cn suy ra c nhanh l c

hai mui Na c to thnh.

Ta c : 2BTNT.Na

3CO :0,22 3

BTNT.C2 3

NaHCO : aNa CO : 0,1 a 2b 0,35 a 0,25

Na CO : b b 0,05NaOH : 0,15 a b 0,3

23CO

n n m 0,05.197 9,85 Chn A

Cu 8: Chn p n A

Gi s trong 100 ml dung dch X c :

2

HCl

4 BaCl BTDT

2

3 NaOH

2

4

Na : ac 0,1

NH : b197c 233d 43 d 0,1 a 0,2

CO : c2b 0,4 b 0,2

SO : d

BTKL X

300 mlm 3(23.0,2 18.0,2 60.0,1 96.0,1) 71,4 Chn A

Ch : bi bt tnh khi lng mui trong 300 ml dung dch X.

Cu 9: Chn p n A

(1) C . 3 2 2 22 2KI O H O I KOH O

(2) C . 3 2 2KClO 6HCl KCl 3H O 3Cl

(3) Khng. 2 4 2SiO 4HF SiF 2H O

(4) C .

0t

4 2 2 2NH Cl NaNO N 2H O NaCl

(5) C. 2 2 2 2MnO 4HCl MnCl Cl 2H O

(6) C. 0t

3 2 22NH 3CuO 3Cu N 3H O

(7).Khng. 2 2 2 2 42 2SO Cl H O HCl H SO Chn A

Cu 10: Chn p n C

Bi ton c nhiu cch tm ra p n.

Ta c : 3 2

2 BTNT.N

muoi R(NO )

2

NO : 0,2m 8 10 18 0,225 n 0,1

O : 0,025

3 2R(NO )

18M 180 R 56

0,1 Chn C

Cu 11: Chn p n A

Cc cp cht c phn ng ha hc nhit thng l :

(1). Khng xy ra phn ng d nhit cao.

25

(6). Dung dch KMnO4 v kh SO2.

(2). Kh H2S v kh SO2. (7). Hg v S.

(3). Kh H2S v dung dch Pb(NO3)2. (8). Kh CO2 v dung dch NaClO.

(4). Kh Cl2 v dung dch NaOH. (9). Khng phn ng.

(5). Kh NH3 v dung dch AlCl3.

(10). Dung dch AgNO3 v dung dch Fe(NO3)2. Chn A

Cu 12: Chn p n B

Cu 13: Chn p n C

4 3

BTNT.Mg

3 2e BTKL

NH NO

BTE

BTNT.nito

2 3

Mg(NO ) : 0,15Mg : 0,14 n 0,28

3,76 23 23 0,15.148MgO : 0,01 n 0,01

80

0,28 0,01.8 0,02.10

N : 0,02 HNO N 0,15.2 0,02 0,02.2 0,36

Chn C

Cu 14: Chn p n D

V 0,5m l hn hp kim loi dung dch sau phn ng ch cha mui Fe2+.

Ta c : sau phan ung3 2 3

2

3 2

Cl : 0,4H : 0,4

Cu(NO ) : 0,12 NO : 0,24 0,1 0,14

4H NO 3e NO 2H O Fe : a

BTDT BTKL(Fe Cu)a 0,27 0,12.64 m 0,27.56 0,5m m 14,48 Chn D

Cu 15: Chn p n B

Ta c : ox2

BTDT BTKLTrong it

Cl O Kimloain 0,15 n 0,15 m 10,65 0,15.16 8,25

Chn B.

Cu 16: Chn p n C

Cht tan l FeSO4.

Ta c :

24BT.Nh m.SO

BTKL.Cu

ay z

5656y 56z 64y y 7z

ay

64

Chn C

Cu 17: Chn p n B

Cu c d 1 gam Y l mui Cu2+ v Fe2+ v HCl c d.

Ta c : 2

2

phan ung

H Mg2

Cu : aY n 0,05 n 3a 0,05

Fe : 2a

BTKL64a 2a.56 24(3a 0,05) 4 a 0,5

26

Cu

HCl

m 64a 1 4,2

n 3a.2 0,05.2 0,4 x 1 Chn B

Cu 18: Chn p n B

Ta c : 2 4

24

2

2H SO 4BTNT.S BTDT BTKLTrong X

SO 3SO

n 0,1 SO : 0,075n 0,075 X m 10

n 0,025 Fe : 0,05

Chn B

Cu 19: Chn p n C

2 4 3

BTNT.Fe

Fe Fe SO

24n 2n 2. 0,12

400

Hn hp u BTNT(O C)Fe : 0,12 Fe : 0,12

DO : a O : a 0,06

BTE0,12.3 2(a 0,06) 0,18.2 a 0,06 ( cha cht ch v D ch l Fe).

2 3BTNT(Fe O) BTKL

Fe

Fe O : 0,02%n 80%

Fe : 0,08 Chn C

Cu 20: Chn p n A

HOOC-COONa; H2O; KHCO3; Al(OH)3 ; (NH4)2SO3

Ch : Al; Zn; Va tc dng vi H+ ; OH- nhng khng phi cht lng tnh Chn A

Cu 21: Chn p n B

Suy lun t p n Chn B

Cu 22: Chn p n B

D thy kim loi cn d v HNO3 thiu.

Ta s dng : 3 34HNO 3e 3NO 2NO 2H O

Dung dch sau phn ng c :

3NO

BTKL2

BTDT 2

: 0,45

Fe : 0,15 m 41,1

Cu : 0,075

Chn B

Cu 23: Chn p n B

Ta c : 2 BTKL

X X Y Y

4 4

H : 0,15n 0,2 m 2,9 m n 0,1

C H : 0,05

2

BTLK. phan ung

Br Bromn 0,1 n 0,05.3 0,1 0,05 m 8 Chn B


27

Cu 24: Chn p n D

Ch .ng phn cu to khng tnh hnh hc.Cc ng phn tha mn l :

C C C(C) C

C C C(C) C

C C C(C) C

Chn D

Cu 25: Chn p n A

: S mol butan b nhit phn bng s mol anken bng s mol Brom.

Ta c : 2 BTKL

Bu tan Bu tan

2

CO : 0,4m m(C,H) 5,8 n 0,1

H O : 0,5

2Br anken

0,075n n 0,075 H 75%

0,1 Chn A

Cu 26: Chn p n B

Vi cc bi ton tm CTPT hay CTCT cc bn nn trit tn dng p n.Ta thy ngay t cc

p n ch c 2 kh nng l X,Y n chc hoc X 2 chc v Y 3 chc.

Ta c : 2

Na

H

0,015 Xn 0,045

0,02 Y loi ngay trng hp n chc (C v D)

Th p n vi tng khi lng CO2 v H2O Chn B

Cu 27: Chn p n B

Bi ton cho cc CTCT (theo cc p n).Cc bn nn trit tn dng.

Ta c : 2 2

BTKL BTNTtrong X

X CO H H Om 8 n 0,6 m 8 0,6.12 0,8 n 0,4

V X l ankin nn : 2 2X CO H O

n n n 0,6 0,4 0,2

2 2XX CO H O

8n n n 0,6 0,4 0,2 M 40

0,2 Loi A v C

Kt hp vi p n Chn B

Cu 28: Chn p n C

Cu 29: Chn p n B

Cu 30: Chn p n A

D thy T l HCOOH v HOOC COOH

Gi s a =1 ta c : OO OO

HCOOH : x x y 1 x 0,4%HCOOH 25,41%

H C C H : y x 2y 1,6 y 0,6

Chn A


28

Cu 31: Chn p n C

Ta c : NaOH RCOONa RCOONa

5,1n 0,075 n M R 44 23 R 1

0,075

Vy Y l : Ag Ag

HCHO : 0,025n 0,025.4 0,075.2 0,25 m 0,25.108 27

HCOOH : 0,075

Chn C

Cu 32: Chn p n C

Ta c : X ph ng h aNaOHH

n 0,125 n 3,55 0,125 3,324

Es Es

te ph ng h ate ph ng h a NaOH

NaOH Glixerol

nn 3,55 0,125 0,05 3,375 n 1,125 m 103,5

3

Chn C

Cu 33: Chn p n D

Suy lun t p n Chn D

Cu 34: Chn p n C

Ta c : 2 3

MOH BTNT.M

M CO

m 7,2 7,2 9,54M 23

m 9,54 M 17 2M 60

Ta li c : es es2 3BTNT.Na

Na CO NaOH te te

9,54 15,84n 0,09 n 0,18 n M 88

2.23 60 0,18

Chn C

Cu 35: Chn p n A

Trng hp 1: OO

OO

2 2

3 2 2

H N CH C H(4dp)

CH CH CH(NH ) C H

Trng hp 2: OO

OO

3 2

3 2

CH CH(NH ) C H(1dp)

CH CH(NH ) C H Chn A

Cu 36: Chn p n B

Ta c : 7 9

14%N 0,13084 R 93 X : C H N

14 R

6 5 2 2

3 6 4 2

C H CH NHX

CH C H NH (3 dp) Chn B

Cu 37: Chn p n B

Ch : Vi cc bi ton thy phn cc em c xem nh peptit b thy phn ra cc aminoaxit

trc .Sau mi i tc dng vi Kim hoc HCl.

29

Ala Gly Val Ala:

Val Gly Val:3

2.89 75 117 22.4 3 117.2 75 3.22 23,745

0,015 17,025

x

x

x x

x m Chn B

Cu 38: Chn p n A

Ta c : X

HCl

n 0,1

n 0,1X c 1 nhm NH2

Vi th nghim 2 : HCl X X

37,65 26,7 26,7n 0,3 n M 89

36,5 0,3 Chn A

Cu 39: Chn p n C

Ta c : XLL Glu Ag

m m mn n .H n .H.2 H 75%

162 162 108 Chn C

Cu 40: Chn p n A

Cu 41: Chn p n B

Ta c : 2

4 6

Br

8 8

a49,125C H : a 30 49,125.a ab49,125 n 2

aC H : b 160 54a 104b b54 104

b

Chn B

Cu 42: Chn p n A

T nhn to hay bn tng hp ly nguyn liu u vo l polime

Cc loi t thuc loi t nhn to l : visco; axetat Chn A

Cu 43: Chn p n C

Ta c : X

Ag

n 0,15

n 0,2 A phi l ancol bc 2.T ta c ngay :

3CH OH BTKL

A

n 0,050,05.32 0,1.A 7,6 A 60

n 0,1 Chn C

Cu 44: Chn p n B

Ta c : 2

2

X

3 4

CO

H O

n aC HC 3

n 3a XCH C CHOH 3,6

n 1,8a

Trong 0,1 mol X : 3 4

C H : x x y 0,1 x 0,08

x 3y 0,14 y 0,02CH C CHO : y Chn B


30

Cu 45: Chn p n B

Ta thy : X1 + X2 0,txt C6H10O2 + H2O.

X1, X2 phi c 3C Suy lun t p n Chn B

Cu 46: Chn p n B

Cu 47: Chn p n A

Ta c : X

Ag

n 0,1

n 0,4 do X phi c CTCT l

2 3

3 3

HCOO CH CH CH CH

HCOO CH C(CH ) CH Chn A

Cu 48: Chn p n A

S cht lm mt mu dung dch KMnO4 nhit thng l

etylen; stiren, C4H4; etanal; propilen Chn A

Cu 49: Chn p n B

Ta c : 2

X

CO

n 0,1

n 0,8X c t hn 8 C Loi C

Ta li c : X

NaOH

n 1

n 1 Chn B

Cu 50: Chn p n A

S cht phn ng c vi dung dch nc brom nhit thng l:

Phenol; SO2; isopren; axitmetacrylic; vinylaxeat, phenyl amin.

Chn A

---------- HT ----------


31

S GIO DC & O TO

THI BNH

THI CHN HC SINH GII LP 12 NM 2011-2012

Mn: HO HC

Thi gian: 90 pht

M : 132

Cu 1: Gii thch no sau y l khng ng?

A. Xenluloz trinitrat hnh thnh nh phn ng:

[C6H7O2(OH)3]n + 3nHNO3 [C6H7O2(ONO2)3]n + 3nH2O

B. Rt dung dch HCl vo vi si bng, vi mn dn do phn ng:

(C6H10O5)n + nH2O nC6H12O6

C. Rt H2SO4 c vo vi si bng, vi b en v thng ngay do phn ng:

(C6H10O5)n 6nC + 5nH2O

D. Xenluloz triaxetat hnh thnh nh phn ng:

[C6H7O2(OH)3]n + 3nCH3COOH [C6H7O2(OOCCH3)3]n + 3nH2O

Cu 2: Cho Cacbon (C) ln lt tc dng vi Al, H2O, CuO, HNO3 c, H2SO4 c, KClO3,

CO2 iu kin thch hp. S phn ng m trong C ng vai tr l cht kh?

A. 4 B. 7 C. 5 D. 6

Cu 3: Thc hin phn ng crackinh butan thu c mt hn hp X gm cc ankan v cc

anken. Cho ton b hn hp X vo dung dch Br2 d thy c kh thot ra bng 60% th tch X v

khi lng dung dch Br2 tng 5,6 gam v c 25,6 gam brom tham gia phn ng. t chy

hon ton kh bay ra thu c a mol CO2 v b mol H2O. Vy a v b c gi tr l:

A. a = 0,9 mol v b = 1,5 mol B. a = 0,56 mol v b = 0,8 mol

C. a = 1,2 mol v b = 1,6 mol D. a = 1,2 mol v b = 2,0 mola

Cu 4: Ho tan hon ton hn hp X cha Fe3O4 v FeS2 trong 63 gam dung dch HNO3 thu

c 1,568 lt NO2 duy nht (ktc). Dung dch thu c tc dng va vi 200 ml dung dch

NaOH 2M, lc kt ta ri em nung n khi lng khng i th thu c 9,76 gam cht rn.

Nng % ca dung dch HNO3 ban u l:

A. 47,2% B. 42,6% C. 46,2% D. 46,6%

Cu 5: X phng ha hon ton 100 gam cht bo X cn dng va 100 ml dung dch NaOH

0,8M, sau phn ng thu c 100,81 gam x phng. Xc nh ch s axit ca cht bo .

A. 1,4 B. 5,6 C. 11,2 D. 2,8

Cu 6: Cho cc dung dch AlCl3, NaCl, NaAlO2, HCl. Dng mt ho cht trong s cc ho cht

sau: Na2CO3, NaCl, NaOH, qu tm, dung dch NH3, NaNO3 th s ho cht c th phn bit

c 4 dung dch trn l:

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

dung dch HCl

H2SO4 c, to

H2SO4 c, to

32

Cu 7: Cho m gam Mg vo dung dch cha 0,12 mol FeCl3. Sau khi phn ng xy ra hon ton

thu c 3,36 gam cht rn. Gi tr ca m l:


Cu 8: Cho dung dch CH3COOH 0,1M, KA = 1,8.10-5. in li ca axit axetic gim mt

na so vi ban u th khi lng CH3COOH cn phi cho vo 1 lt dung dch trn l:


Cu 9: ipeptit mch h X v tripeptit mch h Y u c to nn t mt -aminoaxit (no,

mch h, trong phn t cha mt nhm -NH2 v mt nhm -COOH). t chy hon ton 0,1

mol Y thu c tng khi lng CO2 v H2O bng 54,9 gam. t chy hon ton 0,2 mol X, sn

phm thu c cho li t t qua nc vi trong d, to ra m gam kt ta. Gi tr ca m l:


Cu 10: Hp cht hu c X mch h c khi lng mol l 56 vC. Khi t chy X bng oxi thu

c sn phm ch gm CO2 v H2O. X lm mt mu dung dch brm. S cng thc cu to c

th c ca X l:

A. 4 B. 7 C. 6 D. 5

Cu 11: Cho dy gm cc cht: Na, Mg, Ag, O3, Cl2, HCl, Cu(OH)2, Mg(HCO3)2, CuO, NaCl,

C2H5OH, C6H5OH, C6H5NH2, CH3ONa, CH3COONa. S cht tc dng c vi dung dch axt

propionic (trong iu kin thch hp) l:

A. 10 B. 11 C. 9 D. 8

Cu 12: Nha phenolfomanehit c iu ch bng cch un nng phenol d vi dung dch:

A. CH3COOH trong mi trng axit B. CH3CHO trong mi trng axit

C. HCOOH trong mi trng axit D. HCHO trong mi trng axit

Cu 13: Ha tan 3,56 gam oleum X vo nc thu c dung dch Y. trung ha dung dch Y

cn dng 80 ml dung dch NaOH 1,0M. Vy cng thc ca X l:

A. H2SO4.2SO3 B. H2SO4.4SO3 C. H2SO4.SO3 D. H2SO4.3SO3

Cu 14: Cho m gam bt Fe vo 200 ml dung dch hn hp A cha H2SO4 1M, Fe(NO3)3 0,5M

v CuSO4 0,25M. Khuy u cho n khi phn ng kt thc thu c 0,75m gam cht rn. Gi

tr ca m l:

A. 43,2 gam B. 56 gam C. 33,6 gam D. 32 gam

Cu 15: Cho kim loi M vo dung dch mui ca kim loi X thy c kt ta v kh bay ln. Cho

kim loi X vo dung dch mui ca kim loi Y thy c kt ta Y. Mt khc, cho kim loi X vo

dung dch mui ca kim loi Z, khng thy c hin tng g. Cho bit s sp xp no sau y ng

vi chiu tng dn tnh kim loi ca X, Y, Z, M?

A. Z < X < Y < M B. Y < X < Z < M C. Z < X < M < Y D. Y < X < M < Z

33

Cu 16: Hn hp kh X gm H2 v C2H4 c t khi so vi He l 3,75. Nung X vi Ni sau mt

thi gian thu c hn hp kh Y c t khi so vi He l 5. Hiu sut phn ng hiro ha l:

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

Cu 17: un nng cht H2N-CH2-CONH-CH(CH3)-CONH-CH2-COOH trong dung dch HCl

d, sau khi cc phn ng kt thc thu c sn phm l:

A. H3N+-CH2-COOHCl

-, H3N

+-CH2-CH2-COOHCl

-

B. H3N+-CH2-COOHCl

-, H3N

+-CH(CH3)-COOHCl

-

C. H2N-CH2-COOH, H2N-CH2-CH2-COOH

D. H2N-CH2-COOH, H2N-CH(CH3)-COOH

Cu 18: Dn hn hp M gm hai cht X v Y c cng thc phn t C3H6 v C4H8 vo dung dch

brom trong dung mi CCl4 thy dung dch brom b nht mu v khng c kh thot ra. Ta c cc

kt lun sau:

a). X v Y l 2 xicloankan vng 3 cnh

b). X v Y l mt anken v mt xicloankan vng 4 cnh

c). X v Y l 2 anken ng ng ca nhau

d). X v Y l mt anken v mt xicloankan vng 3 cnh

e). X v Y l mt xicloankan vng 3 cnh v mt xicloankan vng 4 cnh

Cc kt lun ng l:

A. a, c, d B. a, b, c, d C. a, b, d D. a, b, c, d, e

Cu 19: em ha tan hon ton m gam Mg trong dung dch cha ng thi a mol H2SO4 v b

mol HCl, sau phn ng hon ton thu c dung dch cha 2 mui c tng khi lng l

4,1667m. Thit lp biu thc lin h gia s mol ca 2 axit:

A. b = 6a B. b = 4a C. b = 8a D. b = 7a

Cu 20: Cho cc phn ng sau: glucoz + CH3OH HCl khan X + H2O

2X + Cu(OH)2 OH

Y + 2H2O

Vy cng thc ca Y l:

A. (C7H14O7)2Cu B. (C7H13O7)2Cu C. (C6H12O6)2Cu D. (C6H11O6)2Cu

Cu 21: t chy hon ton 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 150 ml dung dch NaOH 1M, c cn dung dch sau phn

ng thu c 16 gam cht rn khan. Vy cng thc ca axit to nn este trn c th l:

A. HOOC-CH2-CH(OH)-CH3 B. CH3-C(CH3)2-COOH

C. HOOC(CH2)3CH2OH D. CH2=CH-COOH


34

Cu 22: S sp xp no sau y ng vi chiu tng dn tnh axit?

A. axit phenic < axit p-nitrobenzoic < axit p-metylbenzoic < axit benzoic

B. axit p-nitrobenzoic < axit benzoic < axit phenic < axit p-metylbenzoic

C. axit p-metylbenzoic < axit p-nitrobenzoic < axit benzoic < axit phenic

D. axit phenic < axit p-metylbenzoic < axit benzoic < axit p-nitrobenzoic

Cu 23: Ha tan hon ton m gam hn hp gm Na, Na2O, NaOH v Na2CO3 trong dung dch

axt H2SO4 40% (va ) thu c 8,96 lt hn hp kh c t khi i vi H2 bng 16,75 v

dung dch Y c nng 51,449%. C cn Y thu c 170,4 gam mui. Gi tr ca m l:


Cu 24: Ha tan hon ton 30 gam hn hp X gm Mg, Al v Zn trong dung dch HNO3, sau phn ng

hon ton thu c dung dch Y v hn hp gm 0,1 mol N2O v 0,1 mol NO. C cn dung dch sau phn

ng thu c 127 gam hn hp mui. Vy s mol HNO3 b kh trong phn ng trn l:


Cu 25: Hn hp X gm: HCHO, CH3COOH, HCOOCH3 v CH3CH(OH)COOH. t chy

hon ton hn hp X cn V lt O2 (ktc) sau phn ng thu c CO2 v H2O. Hp th ht sn

phm chy vo nc vi trong d thu c 30 gam kt ta. Vy gi tr ca V tng ng l:

A. 5,60 lt B. 8,40 lt C. 7,84 lt D. 6,72 lt

Cu 26: Trong cc chui phn ng ha hc sau, chui no c phn ng ha hc khng th thc

hin c?

A. P P2O5 H3PO4 CaHPO4 Ca3(PO4)2 CaCl2 Ca(OH)2 CaOCl2

B. Cl2 KCl KOH KClO3 O2 O3 KOH CaCO3 CaO CaCl2

Ca

C. NH3 N2 NO NO2 NaNO3 NaNO2 N2 Na3N NH3 NH4Cl

HCl

D. S H2S SO2 HBr HCl Cl2 H2SO4 H2S PbS H2S NaHS

Na2S

Cu 27: Cho s sau: p-xilen 0

4 ,

(1)

KMnO tX1 (2) axit terephtalic. Hy cho bit tng i

s cc h s cht trong phng trnh phn ng (1)?

A. 8 B. 16 C. 14 D. 18

Cu 28: Cho cc nhn xt sau:

(1). C th to c ti a 2 ipeptit t phn ng trng ngng hn hp Alanin v Glyxin

(2). Khc vi axt axetic, axt amino axetic c th tham gia phn ng vi axit HCl hoc phn ng

trng ngng

(3). Ging vi axt axetic, aminoaxt c th tc dng vi baz to mui v nc

(4). Axt axetic v axt -amino glutaric c th lm i mu qu tm thnh

Dung dch HCl d

35

(5). Thy phn khng hon ton peptit: Gly-Phe-Tyr-Gly-Lys-Gly-Phe-Tyr c th thu c 6

tripeptit c cha Gly

(6). Cho HNO3 c vo ng nghim cha anbumin thy to dung dch mu tm

C bao nhiu nhn xt ng?

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

Cu 29: X l este to t axit n chc v ancol a chc. X khng tc dng vi Na. Thy phn

hon ton a gam X cn dng va 100 gam dung dch NaOH 6% thu c 10,2 gam mui v 4,6

gam ancol. Vy cng thc ca X l:

A. (CH3COO)2C3H6 B. (HCOO)2C2H4

C. (HCOO)3C3H5 D. (C2H3COO)3C3H5

Cu 30: Trong mt bnh kn dung tch 10 lt nung mt hn hp gm 1 mol N2 v 4 mol H2

nhit t0C v p sut P. Khi phn ng t n trong thi cn bng thu c mt hn hp trong

NH3 chim 25% th tch. Xc nh hng s cn bng KC ca phn ng: N2 + 3H2 2NH3.

A. 25,6 B. 1,6 C. 6,4 D. 12,8

Cu 31: Cho 2,8 gam bt st tc dng hon ton vi V ml dung dch HNO3 0,5M thu c sn

phm kh NO duy nht v dung dch X. X c th tc dng va vi dung dch cha 0,03 mol

AgNO3. Gi tr ca V l:

A. 280 ml B. 320 ml C. 340 ml D. 420 ml

Cu 32: t chy hon ton m gam hn hp X gm 2 ancol a chc, mch h, c cng s nhm

-OH thu c 11,2 lt kh CO2 (ktc) v 12,6 gam H2O. Mt khc nu cho m gam hn hp X tc

dng vi 10 gam Na th sau phn ng thu c a gam cht rn. Gi tr ca a v m ln lt l:

A. 13,8 gam v 23,4 gam B. 9,2 gam v 13,8 gam

C. 23,4 gam v 13,8 gam D. 9,2 gam v 22,6 gam

Cu 33: Cho 672 ml kh clo (ktc) i qua 200 ml dung dch KOH a mol/l 1000C. Sau khi phn

ng xy ra hon ton thu c dung dch X c pH = 13. Lng cht rn thu c khi c cn

dung dch X l:


Cu 34: Thu phn dung dch cha 34,2 gam mantoz mt thi gian. Ly ton b sn phm

thu c sau phn ng thu phn cho tc dng vi lng d dung dch AgNO3 trong NH3, sau

phn ng hon ton thu c 31,32 gam Ag. Hiu sut ca phn ng thu phn mantoz l:

A. 50% B. 45% C. 72,5% D. 55%

Cu 35: Thm t t tng git ca 100 ml dung dch cha Na2CO3 1,2M v NaHCO3 0,6M vo

200 ml dung dch HCl 1M, sau phn ng hon ton thu c dung dch X. Cho dung dch nc

vi trong d vo dung dch X th thu c bao nhiu gam kt ta.


36

Cu 36: Cho cc monome sau: stiren, toluen, metylaxetat, vinylaxetat, metylmetacrylat,

metylacrylat, propilen, benzen, axt etanoic, axt -aminocaproic, caprolactam, etilenoxit. S

monome tham gia phn ng trng hp l:

A. 5 B. 6 C. 7 D. 8

Cu 37: Hp cht X c CTPT l C5H13N. Khi cho X tc dng vi HNO2 thu c cht Y c

CTPT l C5H12O. Oxi ha Y thu c cht hu c Y1 c CTPT l C5H10O. Y1 khng c phn ng

trng bc. Mt khc, hirat ha Y thu c 2 anken l ng phn hnh hc ca nhau. Vy tn gi

ca X l:

A. pentan-3-amin B. pentan-2-amin

C. 3-metylbutan-2-amin D. isopentyl amin

Cu 38: X v Y l hai hp cht hu c ng phn ca nhau cng c cng thc phn t

C5H6O4Cl2. Thy phn hon ton X trong NaOH d thu c hn hp cc sn phm trong c

2 mui v 1 ancol. Thy phn hon ton Y trong KOH d thu c hn hp cc sn phm trong

c 1 mui v 1 anehit. X v Y ln lt c cng thc cu to l:

A. HCOOCH2COOCH2CHCl2 v CH3COOCH2COOCHCl2

B. CH3COOCCl2COOCH3 v CH2ClCOOCH2COOCH2Cl

C. HCOOCH2COOCCl2CH3 v CH3COOCH2COOCHCl2

D. CH3COOCH2COOCHCl2 v CH2ClCOOCHClCOOCH3

Cu 39: Cho cc nguyn t sau 13Al; 5B; 9F; 21Sc. Hy cho bit c im chung trong cu to

ca nguyn t cc nguyn t .

A. u l cc nguyn t thuc cc chu k nh

B. Electron cui cng thuc phn lp p

C. u c 1 electron c thn trng thi c bn

D. u c 3 lp electron

Cu 40: Khi t chy mt polime sinh ra t phn ng ng trng hp isopren vi acrilonitrin

bng lng oxi va thu c hn hp kh cha 58,33% CO2 v th tch. T l mt xch isopren

vi acrilonitrin trong polime trn l:

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

Cu 41: Cho m gam kim loi M tan hon ton trong 200 ml dung dch HCl 0,5M thu c dung

dch X v 2,016 lt H2 (ktc). Cho dung dch AgNO3 d vo dung dch X th thu c bao nhiu

gam kt ta?



Cu 42: ng vi cng thc phn t C7H8O c bao nhiu ng phn l dn xut ca benzen v s

ng phn u tc dng c vi cc cht: K, KOH, (CH3CO)2O:

37

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

Cu 43: X c cng thc phn t l C4H8Cl2. Thy phn X trong dung dch NaOH un nng

thu c cht hu c Y n chc. Hy cho bit X c bao nhiu cng thc cu to?

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

Cu 44: Cho axeton tc dng vi HCN thu c cht hu c X. Thy phn X trong mi trng

axit thu c cht hu c Y. hirat ha X thu c axit cacboxylic Y. Vy Y l cht no sau

y?

A. CH2=C(CH3)COOH B. CH2=CH-COOH

C. CH2=CHCH2COOH D. CH3CH=CHCOOH

Cu 45: Ho tan Fe3O4 trong lng d dung dch H2SO4 long thu c dung dch X. Dung dch

X tc dng c vi bao nhiu cht trong s cc cht sau: Cu, NaOH, Br2, AgNO3, KMnO4,

MgSO4, Mg(NO3)2, Al?

A. 5 B. 6 C. 7 D. 8

Cu 46: t chy hon ton 0,1 mol cht hu c X c cng thc tng qut CxHyO2 thu c khng

n 17,92 lt CO2 (ktc). trung ho 0,2 mol X cn 0,2 mol NaOH. Mt khc cho 0,5 mol X tc

dng vi Na d thu c 0,5 mol H2. S nguyn t H c trong phn t X l:

A. 6 B. 8 C. 10 D. 12

Cu 47: T l khi lng phn t gia oxit cao nht ca nguyn t R v hp cht kh ca n vi

hiro bng 5,5

2. Khi lng mol nguyn t ca R l:

A. 32 B. 12 C. 28 D. 19

Cu 48: Cho 100 gam glixerol tc dng vi 3 mol HNO3 c (xt: H2SO4 c). Tnh khi lng

sn phm cha nhm nitro thu c. Bit rng c 80% glixerol v 70% HNO3 phn ng.


Cu 49: Cho s sau: etanol X. Hy cho bit trong cc cht sau: etilen, etylclorua, etanal,

axit etanoic, etylaxetat, buta-1,3-ien, glucoz. Bao nhiu cht c th l cht X?

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

Cu 50: Nung hn hp gm 3,2 gam Cu v 17 gam AgNO3 trong bnh kn, chn khng. Sau

phn ng hon ton thu c hn hp kh X. Cho X phn ng ht vi nc thu c 2 lt dung

dch Y. pH ca dung dch Y l:

A. 0,523 B. 0,664 C. 1 D. 1,3


38

P N V GII CHI TIT

Cu 1: Chn p n D

A.ng.Theo SGK lp 12.

B.ng.Tnh cht thy phn ca Xenlulozo.

C.ng theo tnh cht ca axit H2SO4 c nng.

D.Sai.Phn ng vi Anhidrit axetic ( Chn D

Cu 2: Chn p n D

C l cht kh khi s oxi ha tng.Cc trng hp tha mn l :

; KCl ; Chn D

Cu 3: Chn p n B

Ta c :

tan

tan

5,6( )0,16.60%

0,24 0,2425,640%0,16

160

g

anken BromTrong X

Ankan Bu

Brom anken

m m gam

n nn n

2,5 5

5,635

0,16ankenM C H

4 10

( )

: 0,16.2,5 0,4

: 0,4.2 0,80,24

: 0,24.4 0,4 0,56 056

: 0,24.10 0,8 1,6 0,8

BTNT C H

C H

BTNT

Canken

Hn

C aankan

H b

Chn B

Cu 4: Chn p n C

Ta c : 2

2 3 3

.

0,07

0,061 0,122

NO

BTNT Fe

Fe O Fe OH

n

n n

Ta li c : 3 4

.2

: 15 0,07 0,004

0,002: 3 0,122

BTE

BTNT Fe

Fe O a a b a

bFeS b a b

2 4 3 3

. . .0,004 0,392 0,392 0,07 0,462BTNT S BTNT Na BTNT NNa SO NaNO HNOn n n

3

0,462.63% .100% 46,2%

63HNO Chn C

Cu 5: Chn p n D

Ta c : 0,8.0,1 0,08OH

n

Gi s mol nc l a ta c :

0,08100 3,2 100,81 18 .92 0,005

3

BTKL aa a

39

Vy ch s axit l : ax

0,005.56.10002,8

100itI Chn D

Cu 6: Chn p n B

Cc ha cht tha mn l : Na2CO3 ,NaOH , NH3 v qu tm.

Ch :Cho AlCl3 vo NaAlO2 c kt ta Al(OH)3 to thnh. Chn B

Cu 7: Chn p n A

Ta c :2 2

. .3,36 0,12.3 0,06.20,06 0,06 0,1256 2

BTNT Fe BTNT Clo

Fe FeCl MgCln n n

. 0,12.24 2,88BTNT Mg m Chn A

Cu 8: Chn p n D

Bi ny c th dng cng thc gii nhanh.Tuy nhin mnh s lm th cng cc bn hiu r.

Gi s ban u c 0,1 mol CH3COOH.Ta c :3 3: OO OO

0,1

cb CH C H CH C H

a a a

35 3 2. 1,33.101,8.10 1,33.10 1,33.10

0,1 0,1A

a aK a

a

Khi cho thm x mol CH3COOH vo ta s c : 3 3: OO OO

0,1

cb CH C H CH C H

x y y y

Ta c : 3

2

3

OO25

1,33.10

0,1 2 2,707.1003.60 18

0,31,8.10

0,1

Them

CH C H

A

y

x ym

xyK

x

Chn D

Cu 9: Chn p n A

Ta c :

2 1 2 3 6 1 4 3

3 6 1 4 3 2 2 2 2 2

. : :

6 1 3......... 3 0,1 0,6 :

2 2

6 10,15 3.44 .18 82,35 3

2

n n n n

chay

n n

A a C H O N Y C H O N

nC H O N O nCO H O N X CO

nn n

Khi X l : 26 12 3 2 2 2 26 6O

C H O N CO H O N

2

. 1,2 1,2.100 120BTNT C COn m Chn A

Cu 10: Chn p n C

Trng hp 1 : X l hidrocacbon (2 )

( )

C C C C

C C C C dp

C C C C

40

Trng hp 2: X cha C,H,O 2

2

CH CH CHO

CH C CH OH Chn C

Cu 11: Chn p n A

S cht tc dng c vi dung dch axt propionic (trong iu kin thch hp) l:

Na; Mg;

Chn A

Cu 12: Chn p n D

Cu 13: Chn p n C

Ta c: 2 4

.0,08 0,04 0,04BTNT NaNaOH Na SO Sn n n

D thy : .

2 4 3

3,560,02 0,04

.

BTNT S

SnH SO SO

Chn C

Cu 14: Chn p n A

Ta c : 3 3 2

2

4

: 0,4

: 0,3 4 3 2

: 0,25

H

NO H NO e NO H O

SO

V KLd nn sau phn ng dung dch gm:

2

3

2

4

:

: 0,3 0,1 0,2 0,35

: 0,25

BTDT

Fe a

NO a

SO

( ) 5,6 3,2 0,75 0,35.56 43,2BTKL Fe Cu m m m Chn A

Cu 15: Chn p n B

(1)Cho kim loi M vo dung dch mui ca kim loi X thy c kt ta v kh M l kim hoc

kim th (l kim loi mnh nht)Loi C v D

(2)ChoX vo dung dch mui ca kim loi Y thy c kt ta Y X >Y loi A Chn B

Cu 16: Chn p n A

Ta c : Chn A

Cu 17: Chn p n B

Cu 18: Chn p n A

a) ng v vng 3 cnh c th c phn ng cng vi dung dch nc Brom.

b) Sai.Vng 4 cnh khng tc dng vi dung dch nc Brom.

c) ng.V anken c phn ng cng vi dung dch nc Brom.

d)ng.

e)Sai .V vng 4 cnh khng c phn ng cng vi dung dch nc Brom. Chn A

41

Cu 19: Chn p n C

Ta c :

2

2

4

:24 2.

24,1667 : 824

96 35,5 4,1667:

BTDT

BTKL

mMg

ma b

m SO a b a

m a b mCl b

Chn C

Cu 20: Chn p n B

Cu 21: Chn p n C

Ta c : 2

2

0,064 1,6 0,08.12 0,064.20,032

0,08 16

H O BTKL Trong E

O

CO

nn

n

E +NaOH : 10 0,15.40 16 0BTKL

ancol ancolm m E l este vng.

10,016 100

2

trong E

E O En n M Chn C

Cu 22: Chn p n D

Cu 23: Chn p n D

D thy hn hp kh l CO2 v H2.Ta c :2 4

2

2

: 0,1 170,40,4 1,2

: 0,3 142Na SO

Hv n

CO

2 4

.

dd ax

1,2.981,2 294

0,4

BTNT S

H SO itn m

2 2

dd

dd ax dd

170,4331,2 294 331,2 13,4 50,6

0,51449

BTKL

Y

it Y H v CO

m m m Chn D

Cu 24: Chn p n D

Ta c :

2

4 33

4 3

0,1

0,1 127 30 80 62(0,1.8 0,1.3 8 ) 0,05

N O

BTKL

NO

Kim loai NH NONO

NH NO

n

n a a a

n a

3

. 0,1.2 0,1.1 0,35BTNT N BikhuHNOn a Chn D

Cu 25: Chn p n D

thy cc cht trong X u c cng thc dng 2 n

CH O

Ta c : ( Chn D

Cu 26: Chn p n D

Ch t PbS khng th bin thnh v PbS khng tan trong axit long. Chn D


42

Cu 27: Chn p n C

Cu 28: Chn p n A

(1). Sai .C th to c 4 ipeptit.

(2). ng.Theo tnh cht ca aminoaxit.

(3). ng.Theo tnh cht ca aminoaxit.

(4). ng.

(5). Sai.

(6). Sai.Mu vng. Chn A

Cu 29: Chn p n C

Nhn qua cc p n ta thy cc este ch c 2 trng hp l 2 chc hoc 3 chc.

es

es

4,60,05 92

0,0560,15

4,6400,075 61,33 ( )

0,075

te ancol ancol

NaOH

te ancol ancol

n n M

n

n n M loai

Chn C

Cu 30: Chn p n D

a 3a 2a

Chn D

Cu 31: Chn p n B

3 3

2 2

:0,03

3 3

: 0,03 0,03.2 0,02.30,05 0,04

3: 0,02

HNO AgNO BTE

Fe NO

Fe Fen n

Fe Fe

3

. 0,160,03.2 0,02.3 0,04 0,16 0,320,5

BTNT N

HNOn V Chn B

Cu 32: Chn p n C

Ta c :2

2

052,5

0,7

CO

H O

nn

n cc ancol trong X ch c hai nhm OH

2 2 2

0,2.2 0,4

0,2 0,2100,434

23

Trong X

OH

X H O CO H

Na

n

n n n nn

( , , ) 0,5.12 0,7.2 0,4.16 13,8BTKL m m C H O

43

13,8 10 0,2.2 23,4BTKL a a Chn C

Cu 33: Chn p n C

3

PH = 13. [

0,05.74,5 0,01.122,5 0,02.56 6,07BTKL m

Chn C

Cu 34: Chn p n B

Ta c : 0,1

0,29 0,1. .2 0,1 01 .2 0,45 45%0,29

Man

Ag

nh h h

n Chn B

Cu 35: Chn p n D

Khi cho

2

3

3

: 0,12

: 0,06

COH

HCO s c CO2 bay ln ngay v sinh ra theo ng t l 2 ion.

Ta c :

Chn D

Cu 36: Chn p n C

S monome tham gia phn ng trng hp l:

stiren, vinylaxetat, metylmetacrylat, metylacrylat,

propilen, caprolactam, etilenoxit Chn C

Cu 37: Chn p n A

Cu 38: Chn p n B

Cu 39: Chn p n C

A. Sai v 21Sc thuc chu k ln.

B. Sai 21Sc c electron cui cng thuc phn lp d.

C. u c 1 electron c thn trng thi c bn Chn C

D. Sai 5B; 9F c 2 lp e.

Cu 40: Chn p n A

Gi s :

2

5 8

2

2

2

: 5 3:

: 4 1,5:

: 0,5

BTNT

CO a bC H a

H O a bCH CH CN b

N b

44

5 3 10,5833

9 5 3

a b a

a b b Chn A

Cu 41: Chn p n A

Ta c : 20,09

0,1

H

HCl

n

nM phi tc dng vi nc

3

2

: 0,1: 0,123,63

: 0,04: 0,08

AgNOBTNTAgClMCl

mAg OMOH

Chn A

Cu 42: Chn p n B

Ch : (CH3CO)2O c th tc dng vi phenol to este Chn B

Cu 43: Chn p n B

Cc CTCT tha mn ca X l :

C-C-C-C- Chn B

Cu 44: Chn p n A

Cu 45: Chn p n C

Trong X c :

2

3

Fe

Fe

H

Cc cht c th tc dng vi dung dch X l :

Cu; NaOH; Br2 Ag+ 4MnO 3NO Al Chn C

Cu 46: Chn p n B

Ta c : 2

0,1

0,8

X

CO

n

nX c nhiu nht 7 C.

2

0,50,2

0,50,2

XX

HNaOH

nn

nnX c 1 nhm chc OH l ancol ,1 nhm chc OH l phenol

Vy X l : 6 4 2HO C H CH OH Chn B

Cu 47: Chn p n B

D thy : 2

4

44 5,5

6 2

CO

CH R l C Chn B

Cu 48: Chn p n A

Bo ton khi lng : 80.+ 0,7 .3 .63 = m+ 0,7. 3.18 m=174,5 Chn A


45

Cu 49: Chn p n B

Cc cht X c th tha mn l : etilen; etylclorua; etanal; etylaxetatc ; buta-1,3-dien

Chn B

Cu 50: Chn p n D

Ta c :3

.

2

.

2

0,05 : 0,1

0,1 : 0,05 : 0,025

BTNT NCu

BTNT OAgNO

n NO

n CuO OPhn ng va .

3

. 0,1 0,05 1,3BTNT N HNO Hn n H PH Chn D


46

S GIO DC V O TO

THI BNH

THI CHN HC SINH GII LP 12 NM HC 2012-2013

Mn: HO HC

Thi gian: 90 pht (Khng k thi gian giao )

gm 04 trang; Th sinh lm bi vo Phiu tr li trc nghim

M : 195

Cho nguyn t khi: H=1; C=12; N=14; O=16; Na=23; Mg=24; Al=27; Si=28; P=31; S=32;

Cl=35,5; K=39; Ca=40; Mn=55; Fe=56; Cu=64; Br=80; Ag=108; I=127; Ba=137.

Cu 1: Cho 300 ml dung dch Ba(OH)2 0,1M vo 250 ml dung dch Al2(SO4)3 x(M) thu c

8,55 gam kt ta. Thm tip 400 ml dung dch Ba(OH)2 0,1M vo hn hp phn ng th lng kt

ta thu c l 18,8475 gam. Gi tr ca x l

A. 0,06. B. 0,09. C. 0,12. D. 0,1.

Cu 2: Cho Fe tc dng ht vi dung dch H2SO4 c nng thu c kh SO2 (sn phm kh duy

nht) v 8,28 gam mui. Bit s mol Fe bng 37,5% s mol H2SO4 phn ng. Khi lng Fe

tham gia phn ng l

A. 1,68 gam. B. 1,12 gam.

C. 1,08 gam. D. 2,52 gam.

Cu 3: Cho 0,1 mol cht X (C2H8O3N2) tc dng vi dung dch cha 0,2 mol NaOH un nng

thu c cht kh lm xanh giy qu tm tm t v dung dch Y. C cn dung dch Y c m

gam cht rn khan. Gi tr ca m l

A. 5,7. B. 12,5. C. 15,5. D. 21,8.

Cu 4: Cho 2,16 gam hn hp gm Al v Mg tan ht trong dung dch axit HNO3 long, un nng

nh to ra dung dch X v 448 ml (o 354,90 K v 988 mmHg) hn hp kh Y kh gm 2 kh

khng mu, khng i mu trong khng kh. T khi ca Y so vi oxi bng 0,716 ln t khi ca

kh cacbonic so vi nit. Lm khan X mt cch cn thn thu c m gam cht rn Z, nung Z n

khi lng khng i thu c 3,84 gam cht rn T. Gi tr ca m l

A. 15,18. B. 17,92. C. 16,68. D. 15,48.

Cu 5: Oxi ha 4,6 gam ancol etylic bng O2 iu kin thch hp thu c 6,6 gam hn hp X

gm anehit, axit, ancol d v nc. Hn hp X tc dng vi natri d sinh ra 1,68 lt H2 (ktc).

Hiu sut ca phn ng chuyn ha ancol thnh anehit l

A. 75%. B. 50%. C. 33%. D. 25%.

Cu 6: , b mol FeCO3 2

A. a = b+c. B. 4a+4c=3b. C. b=c+a. D. a+c=2b.

47

Cu 7: ho tan ht mt mu Al trong dung dch axit HCl 250C cn 36 pht. Cng mu Al

tan ht trong dung dch axit ni trn 450C trong 4 pht. Hi ho tan ht mu Al trong

dung dch axit ni trn 600C th cn thi gian bao nhiu giy?

A. 45,465 giy. B. 56,342 giy.

C. 46,188 giy. D. 38,541 giy.

Cu 8: Cho cc pht biu sau :

(1) Trong hp cht vi oxi, nit c cng ha tr cao nht bng V.

(2) Trong cc hp cht, flo lun c s oxi ha bng -1.

(3) Lu hunh trong hp cht vi kim loi lun c s oxi ha l -2.

(4) Trong hp cht, s oxi ha ca nguyn t lun khc khng.

(5) Trong hp cht, mt nguyn t c th c nhiu mc s oxi ha khc nhau.

(6) Trong mt chu k, theo chiu tng in tch ht nhn, bn knh nguyn t ca cc nguyn t tng

dn.

S pht biu ng l

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

Cu 9: Hp cht hu c C4H7O2Cl (X), khi thy phn trong mi trng kim c cc sn phm,

trong c hai cht c kh nng phn ng trng gng. Cng thc cu to ng ca (X) l

A. HCOO-CH2-CHCl-CH3. B. CH3COO-CH2-CH2Cl.

C. HCOOCHCl-CH2-CH3. D. ClCH2COO-CH2-CH3.

Cu 10: Cho cc phn ng sau:

(1) dung dch Na2CO3 + dung dch H2SO4.

(2) dung dch Na2CO3 + dung dch FeCl3.

(3) dung dch Na2CO3 + dung dch CaCl2.

(4) dung dch NaHCO3 + dung dch Ba(OH)2.

(5) dung dch (NH4)2SO4 + dung dch Ba(OH)2.

(6) dung dch Na2S + dung dch AlCl3.

S phn ng to ng thi c kt ta v kh bay ra l

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

Cu 11: Cht hu c X cha vng benzen c cng thc phn t l CxHyO. Bit % O = 14,81%

(theo khi lng).S cng thc cu to ph hp ca X l

A. 8. B. 6. C. 7. D. 5.

Cu 12: Thc hin tng hp tetrapeptit t 3,0 mol glyxin; 4,0 mol alanin v 6,0 mol valin. Bit

phn ng xy ra hon ton. Khi lng tetrapeptit thu c l

A. 1510,5 gam. B. 1120,5 gam.

C. 1049,5 gam. D. 1107,5 gam.

48

Cu 13: un nng m gam cht hu c (X) cha C, H, O vi 100 ml dung dch NaOH 2M n

khi phn ng xy ra hon ton. trung ha lng NaOH d cn 40 ml dung dch HCl 1M. Lm

bay hi cn thn dung dch sau khi trung ha, thu c 7,36 gam hn hp 2 ancol n chc (Y),

(Z) v 15,14 gam hn hp 2 mui khan, trong c mt mui ca axit cacboxylic (T). Kt lun

no sau y ng?

A. Axit (T) c cha 2 lin kt i trong phn t.

B. S nguyn t cacbon trong axit (T) bng mt na s nguyn t cacbon trong cht hu c

X.

C. Ancol (Y) v (Z) l 2 cht ng ng lin tip vi nhau.

D. Cht hu c X c cha 14 nguyn t hiro.

Cu 14: Thy phn 4,3 gam poli(vinyl axetat) trong mi trng kim thu c 2,62 gam polime.

Hiu sut ca phn ng thy phn l

A. 60%. B. 80%. C. 75%. D. 85%.

Cu 15: t chy hon ton 24,8 gam hn hp X gm (axetilen, etan v propilen) thu c 1,6

mol nc. Mt khc 0,5 mol X tc dng va vi dung dch cha 0,645 mol Br2. Phn trm th

tch ca etan trong hn hp X l

A. 5,0%. B. 3,33%. C. 4,0 %. D. 2,5%.

Cu 16: Cho m gam hn hp tinh th gm NaBr, NaI tc dng va vi H2SO4 c iu

kin thch hp, thu c hn hp kh X iu kin thng. iu kin thch hp hn hp X tc

dng va vi nhau to thnh 9,6 gam cht rn mu vng v mt cht lng khng lm i mu

qu tm. Gi tr ca m l

A. 260,6. B. 240. C. 404,8. D. 50,6.

Cu 17: Cho m gam butan qua xc tc ( nhit thch hp), thu c hn hp gm 5

hirocacbon. Cho hn hp kh ny sc qua bnh ng dung dch nc brom d th lng brom

tham gia phn ng l 25,6 gam v sau th nghim bnh brom tng 5,32 gam. Hn hp kh cn li

sau khi qua dung dch nc brom c t khi so vi metan l 1,9625. Gi tr ca m l

A. 17,4. B. 8,7. C. 5,8. D. 11,6.

Cu 18: 2 2CO3

. 100 ml dung d 0

(ktc). Mt khc, 100 ml dung dch X tc dng vi dung dch Ba(OH)2 d thu c

39,4 gam kt t

A. 0,15. B. 0,2. C. 0,1. D. 0,06.


49

Cu 19: Dung dch CH3COOH (dung dch A) c pH = 2,57. Nu trn 100 ml dung dch A vi

100 ml dung dch NaOH (dung dch B) c pH = 13,3 c 200 ml dung dch C. Bit

Ka(CH3COOH) = 1,85.10-5

. pH ca dung dch C l

A. 3,44. B. 4,35. C. 5,47. D. 4,74.

Cu 20: Cho cc pht biu sau:

(1) Trong 3 dung dch c cng pH l HCOOH, HCl v H2SO4 th dung dch c nng mol

ln nht l HCOOH.

(2) Phn ng trao i ion khng km theo s thay i s oxi ha ca nguyn t.

(3) C th phn bit trc tip 3 dung dch: KOH, HCl, H2SO4 (long) bng mt thuc th l

BaCO3.

(4) Axit, baz, mui l cc cht in li.

(5) Dung dch CH3COONa v dung dch C6H5ONa (natri phenolat) u l dung dch c pH

>7.

(6) Theo thuyt in li, SO3 v C6H6 (benzen) l nhng cht in li yu.

S pht biu ng l

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

Cu 21: p g

2SO4

(OH)2

A. 2,70. B. 2,34. C. 3,24. D. 3,65.

Cu 22: :

(1) CaOCl2 l mui kp.

(2) Lin kt kim loi l lin kt c hnh thnh gia cc nguyn t v ion kim loi trong

mng tinh th do s tham gia ca cc electron t do.

(3) Supephotphat kp c thnh phn ch yu l Ca(H2PO4)2.

u nht.

.

(6) Kim loi c nhit nng chy thp nht l thy ngn (Hg).

(7) CO2 l phn t phn cc.

A. 7. B. 4. C. 6. D. 5.

Cu 23: Cho phn ng:

CH3COCH3 + KMnO4 + KHSO4 CH3COOH + MnSO4 + K2SO4 + CO2 + H2O

Tng h s ca cc cht (l nhng s nguyn, ti gin) trong phng trnh phn ng l

A. 68. B. 97. C. 88. D. 101.

50

Cu 24: C 4 cht: isopropyl benzen (1), ancol benzylic (2), benzanehit (3) v axit benzoic (4).

Th t tng dn nhit si ca cc cht trn l

A. (2) < (3) < (1) < (4). B. (2) < (3) < (4) < (1).

C. (1) < (2) < (3) < (4). D. (1) < (3) < (2) < (4).

Cu 25: Bit tan ca NaCl trong 100 gam nc 900C l 50 gam v 00C l 35 gam. Khi

lm lnh 600 gam dung dch NaCl bo ha 900C v 00C lm thot ra bao nhiu gam tinh th

NaCl?

A. 45 gam. B. 55 gam. C. 50 gam. D. 60 gam.

Cu 26: Cho hn hp (HCHO v H2 d) i qua ng ng bt Ni un nng thu c hn hp X.

Dn ton b sn phm thu c vo bnh nc lnh thy khi lng bnh tng 5,9 gam. Ly ton

b dung dch trong bnh cho tc dng vi dung dch AgNO3/NH3 d thu c 10,8 gam Ag.

Khi lng ancol c trong X l gi tr no di y?

A. 8,3 gam. B. 5,15 gam.

C. 9,3 gam. D. 1,03 gam.

Cu 27: Cho cc nguyn t sau: 13Al; 5B; 9F; 21Sc. Hy cho bit c im chung ca cc nguyn

t .

A. Electron cui cng thuc phn lp p.

B. u c 1 electron c thn trng thi c bn.

C. u c 3 lp electron.

D. u l cc nguyn t thuc chu k nh.

Cu 28: Ho tan hon ton 0,775 gam n cht (X) trong dung dch HNO3 c thu c 5,75

gam hn hp gm hai kh (c thnh phn % theo khi lng ca oxi nh nhau) v dung dch (Y).

Bit t khi hi ca hn hp kh so vi hiro l 115/3. trng thi c bn nguyn t X c s

electron c thn l

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

Cu 29: Cho cc cht: Glixerol, etylen glicol, gly-ala-gly, glucoz, axit axetic, saccaroz,

anehit fomic, anilin. S cht tc dng c vi Cu(OH)2 ( iu kin thch hp) l

A. 7. B. 8. C. 6 . D. 5.

Cu 30: Nguyn t X c cu trc mng lp phng tm din (hnh bn). Phn trm

th tch khng gian trng trong mng li tinh th ca X l

A. 32 %. B. 26 %. C. 74 %. D. 68 %.

Cu 31: Tch nc hon ton t 25,8 gam hn hp A gm 2 ancol X v Y (MX

51

A. 35%. B. 65%. C. 60%. D. 55%.

Cu 32: Mt khong cht c cha 20,93% nhm; 21,7% silic (theo khi lng), cn li l oxi v

hiro. Phn trm khi lng ca hiro trong khong cht l

A. 2,68%. B. 5,58%. C. 1,55%. D. 2,79%.

Cu 33: Cho cc cht sau: Tristearin, hexan, benzen, glucoz, xenluloz, metylamin,

phenylamoni clorua, triolein, axetilen, saccaroz. S cc cht khng tan trong nc l

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

Cu 34: Khi thy phn 500 gam protein A thu c 170 gam alanin. Nu phn t khi ca A l

50.000, th s mt xch alanin trong phn t A l bao nhiu?

A. 191. B. 189. C. 196. D. 195.

Cu 35: C cc dung dch ring bit sau: H2N-CH2-CH2-CH(NH2)-COOH, HOOC-CH2-CH2-

CH(NH2)-COOH, H2N-CH2-COONa, ClH3N-CH2-COOH, C6H5-NH3Cl (phenylamoni clorua).

S lng cc dung dch c pH < 7 l

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

Cu 36: Hirocacbon thm C9H8 (X) lm mt mu nc brom, cng hp c vi brom theo t

l mol 1:2, khi oxi ha to thnh axit benzoic, khi tc dng vi dung dch AgNO3 trong NH3 to

kt ta c trng. Pht biu no sau y khng ng?

A. X c 3 cng thc cu to ph hp. B. X c tn gi l benzyl axetilen.

C. X c bt bo ha bng 6. D. X c lin kt ba u mch.

Cu 37: Mt hn hp Y gm 2 este A, B mch h (MA< MB). Nu un nng 15,7 gam hn hp

Y vi dung dch NaOH d th thu c mt mui ca axit hu c n chc v 7,6 gam hn hp

2 ancol no n chc k tip nhau trong dy ng ng. Nu t chy 15,7 gam hn hp Y cn

dng va ht 21,84 lt O2 v thu c 17,92 lt CO2. Cc th tch kh o ktc. Phn trm khi

lng ca A trong hn hp Y l

A. 63,69%. B. 40,57%. C. 36,28%. D. 48,19%.

Cu 38: Qu trnh iu ch t no di y l qu trnh trng hp?

A. T lapsan t etylen glicol v axit terephtalic.

B. T capron t axit -amino caproic.

C. T nilon-6,6 t hexametyleniamin v axit aipic.

D. T nitron (t olon) t acrilonitrin.

Cu 39: Trong cht bo lun c mt lng axit bo t do. Khi thy phn hon ton 2,145 kg cht bo

cn dng 0,3 kg NaOH, thu c 0,092 kg glixerol v m (kg) hn hp mui natri. Gi tr ca m l

A. 3,765. B. 2,610. C. 2,272. D. 2,353.


52

Cu 40: Hai hp cht thm X v Y c cng cng thc phn t l CnH2n-8O2. Bit hi cht Y c

khi lng ring 5,447 gam/lt (ktc). X c kh nng phn ng vi Na gii phng H2 v c

phn ng trng bc. Y phn ng c vi Na2CO3 gii phng CO2. Tng s cng thc cu to

ph hp ca X v Y l

A. 4. B. 5. C. 7. D. 6.

Cu 41: Cho cc pht biu sau:

(1) Cc tiu phn Ar, K+, Cl- u c cng s n v in tch ht nhn.

(2) Trong nguyn t s proton lun bng s ntron.

(3) ng v l hin tng cc nguyn t c cng s khi.

(4) Bn knh ca cation nh hn bn knh ca nguyn t tng ng.

(5) Nc thuc loi tinh th nguyn t.

(6) Kim cng c cu trc tinh th phn t.

S pht biu ng l

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

Cu 42: Cho cc cht sau: Glixerol, ancol etylic, p-crezol, phenylamoni clorua, valin, lysin,

anilin, ala-gly, phenol, amoni hirocacbonat. S cht tc dng c vi dung dch NaOH l

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

Cu 43: Cho 1,0 mol axit axetic tc dng vi 1,0 mol ancol isopropylic th cn bng t c khi c

0,6 mol isopropyl axetat c to thnh. Lc ngi ta cho thm 2,0 mol axit axetic vo hn

hp phn ng, cn bng b ph v v chuyn n trng thi cn bng mi. S mol ca isopropyl

axetat trng thi cn bng mi l

A. 1,25 mol. B. 0,25 mol.

C. 0,85 mol. D. 0,50 mol.

Cu 44: Khi un nng 25,8 gam hn hp ru (ancol) etylic v axit axetic c H2SO4 c lm xc tc thu

c 14,08 gam este. Nu t chy hon ton lng hn hp ban u thu c 23,4 ml nc.

Hiu sut ca phn ng este ha l

A. 70%. B. 80%. C. 75%. D. 85%.

Cu 45: Trong phng th nghim c cc dung dch v cht lng ng trong cc bnh mt nhn

ring bit gm NH4HCO3, Ba(HCO3)2, C6H5ONa (natri phenolat), C6H6 (benzen),

C6H5NH2(anilin) v KAlO2 hoc K[Al(OH)4]. Hy chn mt thuc th nhn bit trc tip

c cc dung dch v cht lng trn?

A. Dung dch NaOH. B. Dung dch H2SO4.

C. Dung dch BaCl2. D. Qu tm.

53

Cu 46: Cho 2,5 kg glucoz cha 20% tp cht ln men thnh ru (ancol) etylic. Tnh th tch

dung dch ru 400 thu c? Bit ru nguyn cht c khi lng ring 0,8 g/ml v trong qu

trnh ch bin, ru b hao ht mt 10%.

A. 2300,0 ml. B. 2875,0 ml.

C. 3194,4 ml. D. 2785,0 ml.

Cu 47: Cho 30,1 gam hn hp X gm Cu v Fe3O4 tc dng vi dung dch HNO3 long, u

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