hoa hoc.pd.este - lipit

ESTE LIPIT

I. ESTE

Cu to Danh php

Cu 6 (A.08 263): S ng phn este ng vi cng thc phn t C4H8O2 l

A. 5. B. 2. C. 4. D. 6.

Cu 43 (B.07 285): Hai este n chc X v Y l ng phn ca nhau. Khi ho hi 1,85 gam X, thu c th tch hi ng bng th tch ca 0,7 gam N2 (o cng iu kin). Cng thc cu to thu gn ca X v Y l

A. HCOOC2H5 v CH3COOCH3. B. C2H3COOC2H5 v C2H5COOC2H3.

C. C2H5COOCH3 v HCOOCH(CH3)2. D. HCOOCH2CH2CH3 v CH3COOC2H5.

P thy phn este

Cu 46 (B.07 285): Thy phn este c cng thc phn t C4H8O2 (vi xc tc axit), thu c 2 sn phm hu c X v Y. T X c th iu ch trc tip ra Y. Vy cht X l

A. ru metylic. B. etyl axetat. C. axit fomic. D. ru etylic.

Cu 16 (B.12 359): S trieste khi thy phn u thu c sn phm gm glixerol, axit CH3COOH v axit C2H5COOH l

A. 9. B. 4. C. 6. D. 2.

Cu 24 (B.07 285): X l mt este no n chc, c t khi hi i vi CH4 l 5,5. Nu em un 2,2 gam este X vi dung dch NaOH (d), thu c 2,05 gam mui. Cng thc cu to thu gn ca X l

A. HCOOCH2CH2CH3. B. C2H5COOCH3.

C. CH3COOC2H5. D. HCOOCH(CH3)2.

Cu 45 (C.12 169): Ha hi hon ton 4,4 gam mt este X mch h, thu c th tch hi bng th tch ca 1,6 gam kh oxi (o cng iu kin). Mt khc, thy phn hon ton 11 gam X bng dung dch NaOH d, thu c 10,25 gam mui. Cng thc ca X l

A. C2H5COOCH3. B. C2H5COOC2H5. C. CH3COOC2H5. D. HCOOC3H7.

Cu 8 (C.11 259): Cho m gam cht hu c n chc X tc dng va vi 50 gam dung dch NaOH 8%, sau khi phn ng hon ton thu c 9,6 gam mui ca mt axit hu c v 3,2 gam mt ancol. Cng thc ca X l

A. CH3COOCH=CH2. B. CH3COOC2H5. C. C2H5COOCH3. D. CH2=CHCOOCH3.

Cu 1 (C.08 216): Este n chc X c t khi hi so vi CH4 l 6,25. Cho 20 gam X tc dng vi 300 ml dung dch KOH 1M (un nng). C cn dung dch sau phn ng thu c 28 gam cht rn khan. Cng thc cu to ca X l

A. CH2=CH-CH2-COO-CH3. B. CH2=CH-COO-CH2-CH3.

C. CH3 -COO-CH=CH-CH3. D. CH3-CH2-COO-CH=CH2.

Cu 35 (A.07 182): X phng ha 8,8 gam etyl axetat bng 200 ml dung dch NaOH 0,2M. Sau khi phn ng xy ra hon ton, c cn dung dch thu c cht rn khan c khi lng l

A. 8,56 gam. B. 3,28 gam. C. 10,4 gam. D. 8,2 gam.

Cu 5 (A.10 253): Thu phn hon ton 0,2 mol mt este E cn dng va 100 gam dung dch NaOH 24%, thu c mt ancol v 43,6 gam hn hp mui ca hai axit cacboxylic n chc. Hai axit l

A. HCOOH v C2H5COOH. B. HCOOH v CH3COOH.

C. C2H5COOH v C3H7COOH. D. CH3COOH v C2H5COOH.

Cu 2 (C.09 182): Cho 20 gam mt este X (c phn t khi l 100 vC) tc dng vi 300 ml dung dch NaOH 1M. Sau phn ng, c cn dung dch thu c 23,2 gam cht rn khan. Cng thc cu to ca X l

A. CH2=CHCH2COOCH3. B. CH3COOCH=CHCH3.

C. C2H5COOCH=CH2. D. CH2=CHCOOC2H5.

Cu 2 (C.08 216): X phng ho hon ton 22,2 gam hn hp gm hai este HCOOC2H5 v CH3COOCH3 bng dung dch NaOH 1M (un nng). Th tch dung dch NaOH ti thiu cn dng l

A. 400 ml. B. 300 ml. C. 150 ml. D. 200 ml.

Cu 39 (A.09 175): X phng ha hon ton 66,6 gam hn hp hai este HCOOC2H5 v CH3COOCH3 bng dung dch NaOH, thu c hn hp X gm hai ancol. un nng hn hp X vi H2SO4 c 140 oC, sau khi phn ng xy ra hon ton thu c m gam nc. Gi tr ca m l

A. 4,05. B. 8,10. C. 18,00. D. 16,20.

Cu 11 (A.09 175): X phng ho hon ton 1,99 gam hn hp hai este bng dung dch NaOH thu c 2,05 gam mui ca mt axit cacboxylic v 0,94 gam hn hp hai ancol l ng ng k tip nhau. Cng thc ca hai este l

A. CH3COOCH3 v CH3COOC2H5.

B. C2H5COOCH3 v C2H5COOC2H5.

C. CH3COOC2H5 v CH3COOC3H7.

D. HCOOCH3 v HCOOC2H5.

Cu 5 (C.11 259): x phng ho hon ton 52,8 gam hn hp hai este no, n chc, mch h l ng phn ca nhau cn va 600 ml dung dch KOH 1M. Bit c hai este ny u khng tham gia phn ng trng bc. Cng thc ca hai este l

A. C2H5COOC2H5 v C3H7COOCH3. B. C2H5COOCH3 v CH3COOC2H5.

C. HCOOC4H9 v CH3COOC3H7. D. CH3COOC2H5 v HCOOC3H7.

Cu 44 (B.10 174): Hn hp M gm axit cacboxylic X, ancol Y (u n chc, s mol X gp hai ln s mol Y) v este Z c to ra t X v Y. Cho mt lng M tc dng va vi dung dch cha 0,2 mol NaOH, to ra 16,4 gam mui v 8,05 gam ancol. Cng thc ca X v Y l

A. HCOOH v CH3OH. B. CH3COOH v CH3OH.

C. HCOOH v C3H7OH. D. CH3COOH v C2H5OH.

Cu 39 (A.11 273): Este X c to thnh t etylen glicol v hai axit cacboxylic n chc. Trong phn t este, s nguyn t cacbon nhiu hn s nguyn t oxi l 1. Khi cho m gam X tc dng vi dung dch NaOH (d) th lng NaOH phn ng l 10 gam. Gi tr ca m l

A. 17,5. B. 14,5. C. 15,5. D. 16,5.

Cu 8 (C.08 216): Cht hu c X c cng thc phn t C4H6O4 tc dng vi dung dch NaOH (un nng) theo phng trnh phn ng: C4H6O4 + 2NaOH 2Z + Y.

oxi ho ht a mol Y th cn va 2a mol CuO (un nng), sau phn ng to thnh a mol cht T (bit Y, Z, T l cc hp cht hu c). Khi lng phn t ca T l

A. 44 vC. B. 58 vC. C. 82 vC. D. 118 vC.

Cu 27 (B.08 195): Hp cht hu c no, a chc X c cng thc phn t C7H12O4. Cho 0,1 mol X tc dng va vi 100 gam dung dch NaOH 8% thu c cht hu c Y v 17,8 gam hn hp mui. Cng thc cu to thu gn ca X l

A. CH3OOC(CH2)2COOC2H5. B. CH3COO(CH2)2COOC2H5.

C. CH3COO(CH2)2OOCC2H5. D. CH3OOCCH2COOC3H7.

Cu 1 (B.10 174): Hp cht hu c mch h X c cng thc phn t C6H10O4. Thu phn X to ra hai ancol n chc c s nguyn t cacbon trong phn t gp i nhau. Cng thc ca X l

A. CH3OCO-CH2-COOC2H5. B. C2H5OCO-COOCH3.

C. CH3OCO-COOC3H7. D. CH3OCO-CH2-CH2-COOC2H5.

Este c gc ancol dng vinyl

Cu 24 (C.12 169): Cho s phn ng:

Cng thc cu to ca X tha mn s cho l

A. CH3COOCH2CH3. B. CH2=CHCOOCH3.

C. CH3COOCH=CH2. D. HCOOCH2CH2CH3.

Cu 5 (B.12 359): Thy phn este X mch h c cng thc phn t C4H6O2, sn phm thu c c kh nng trng bc. S este X tha mn tnh cht trn l

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

Cu 56 (A.07 182): Mt este c cng thc phn t l C4H6O2, khi thu phn trong mi trng axit thu c axetanehit. Cng thc cu to thu gn ca este l

A. CH2=CH-COO-CH3. B. HCOO-C(CH3)=CH2.

C. HCOO-CH=CH-CH3. D. CH3COO-CH=CH2.

Cu 31 (B.10 174): Thy phn este Z trong mi trng axit thu c hai cht hu c X v Y (MX < MY). Bng mt phn ng c th chuyn ho X thnh Y. Cht Z khng th l

A. metyl propionat. B. metyl axetat. C. etyl axetat. D. vinyl axetat.

Cu 30 (C.07 231): Este X khng no, mch h, c t khi hi so vi oxi bng 3,125 v khi tham gia phn ng x phng ho to ra mt anehit v mt mui ca axit hu c. C bao nhiu cng thc cu to ph hp vi X?

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

Cu 28 (C.07 231): Cho cht X tc dng vi mt lng va dung dch NaOH, sau c cn dung dch thu c cht rn Y v cht hu c Z. Cho Z tc dng vi AgNO3 (hoc Ag2O) trong dung dch NH3 thu c cht hu c T. Cho cht T tc dng vi dung dch NaOH li thu c cht Y. Cht X c th l

A. HCOOCH=CH2. B. CH3COOCH=CH2.

C. HCOOCH3. D. CH3COOCH=CH-CH3.

Cu 56 (A.09 175): Cht hu c X c cng thc phn t C5H8O2. Cho 5 gam X tc dng va ht vi dung dch NaOH, thu c mt hp cht hu c khng lm mt mu nc brom v 3,4 gam mt mui. Cng thc ca X l

A. HCOOC(CH3)=CHCH3. B. CH3COOC(CH3)=CH2.

C. HCOOCH2CH=CHCH3. D. HCOOCH=CHCH2CH3.

Este ca phenol

Cu 52 (A.09 175): Cho dy chuyn ho sau:

Hai cht X, Y trong s trn ln lt l:

A. axit axetic, phenol. B. anhirit axetic, phenol.

C. anhirit axetic, natri phenolat. D. axit axetic, natri phenolat.

Cu 37 (B.12 359): Este X l hp cht thm c cng thc phn t l C9H10O2. Cho X tc dng vi dung dch NaOH, to ra hai mui u c phn t khi ln hn 80. Cng thc cu to thu gn ca X l

A. CH3COOCH2C6H5. B. HCOOC6H4C2H5. C. C6H5COOC2H5. D. C2H5COOC6H5.

Cu 1 (B.11 153): Khi cho 0,15 mol este n chc X tc dng vi dung dch NaOH (d), sau khi phn ng kt thc th lng NaOH phn ng l 12 gam v tng khi lng sn phm hu c thu c l 29,7 gam. S ng phn cu to ca X tho mn cc tnh cht trn l

A. 5. B. 2. C. 4. D. 6.

Cu 40 (A.11 273): Cho axit salixylic (axit o-hiroxibenzoic) phn ng vi anhirit axetic, thu c axit axetylsalixylic (o-CH3COO-C6H4-COOH) dng lm thuc cm (aspirin). phn ng hon ton vi 43,2 gam axit axetylsalixylic cn va V lt dung dch KOH 1 M. Gi tr ca V l

A. 0,72.B. 0,24.C. 0,48.D. 0,96.

P t chy

Cu 38 (A.08 263): Este X c cc c im sau:

t chy hon ton X to thnh CO2 v H2O c s mol bng nhau;

Thu phn X trong mi trng axit c cht Y (tham gia phn ng trng gng) v cht Z (c s nguyn t cacbon bng mt na s nguyn t cacbon trong X).

Pht biu khng ng l:

A. t chy hon ton 1 mol X sinh ra sn phm gm 2 mol CO2 v 2 mol H2O.

B. Cht Y tan v hn trong nc.

C. Cht X thuc loi este no, n chc.

D. un Z vi dung dch H2SO4 c 170oC thu c anken.

Cu 42 (B.08 -195): Khi t chy hon ton mt este no, n chc th s mol CO2 sinh ra bng s mol O2 phn ng. Tn gi ca este l

A. metyl fomiat. B. etyl axetat. C. n-propyl axetat. D. metyl axetat.

Cu 57 (A.11 273): t chy hon ton 0,11 gam mt este X (to nn t mt axit cacboxylic n chc v mt ancol n chc) thu c 0,22 gam CO2 v 0,09 gam H2O. S este ng phn ca X l

A. 4. B. 6. C. 2. D. 5.

Cu 60 (A.11 296): Kh este no, n chc, mch h X bng LiAlH4 thu c ancol duy nht Y. t chy hon ton Y thu c 0,2 mol CO2 v 0,3 mol H2O. t chy hon ton 0,1 mol X thu c tng khi lng CO2 v H2O l


Cu 19 (C.07 231): Khi t chy hon ton 4,4 gam cht hu c X n chc thu c sn phm chy ch gm 4,48 lt CO2 ( ktc) v 3,6 gam nc. Nu cho 4,4 gam hp cht X tc dng vi dung dch NaOH va n khi phn ng hon ton, thu c 4,8 gam mui ca axit hu c Y v cht hu c Z. Tn ca X l

A. etyl propionat. B. metyl propionat. C. isopropyl axetat. D. etyl axetat.

Cu 11 (C.11 259): Este X no, n chc, mch h, khng c phn ng trng bc. t chy 0,1 mol X ri cho sn phm chy hp th hon ton vo dung dch nc vi trong c cha 0,22 mol Ca(OH)2 th vn thu c kt ta. Thu phn X bng dung dch NaOH thu c 2 cht hu c c s nguyn t cacbon trong phn t bng nhau. Phn trm khi lng ca oxi trong X l

A. 37,21%. B. 36,36%. C. 43,24%. D. 53,33%.

Cu 13 (A.10 253): t chy hon ton mt este n chc, mch h X (phn t c s lin kt nh hn 3), thu c th tch kh CO2 bng 6/7 th tch kh O2 phn ng (cc th tch kh o cng iu kin). Cho m gam X tc dng hon ton vi 200 ml dung dch KOH 0,7M thu c dung dch Y. C cn Y thu c 12,88 gam cht rn khan. Gi tr ca m l

A. 10,56. B. 7,20. C. 8,88. D. 6,66.

Cu 10 (B.09 148): Hn hp X gm hai este no, n chc, mch h. t chy hon ton mt lng X cn dng va 3,976 lt kh O2 ( ktc), thu c 6,38 gam CO2. Mt khc, X tc dng vi dung dch NaOH, thu c mt mui v hai ancol l ng ng k tip. Cng thc phn t ca hai este trong X l

A. C2H4O2 v C5H10O2. B. C2H4O2 v C3H6O2.

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

Cu 4 (B.12 359): t chy hon ton m gam hn hp X gm hai este ng phn cn dng 27,44 lt kh O2, thu c 23,52 lt kh CO2 v 18,9 gam H2O. Nu cho m gam X tc dng ht vi 400 ml dung dch NaOH 1M, c cn dung dch sau phn ng th thu c 27,9 gam cht rn khan, trong c a mol mui Y v b mol mui Z (MY < MZ). Cc th tch kh u o iu kin tiu chun. T l a : b l

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

Cu 4 (C.10 268): Hn hp Z gm hai este X v Y to bi cng mt ancol v hai axit cacboxylic k tip nhau trong dy ng ng (MX < MY). t chy hon ton m gam Z cn dng 6,16 lt kh O2 (ktc), thu c 5,6 lt kh CO2 (ktc) v 4,5 gam H2O. Cng thc este X v gi tr ca m tng ng l

A. (HCOO)2C2H4 v 6,6. B. HCOOCH3 v 6,7.

C. CH3COOCH3 v 6,7. D. HCOOC2H5 v 9,5.

II. CHT BO

Cu 24 (C.11 259): Cng thc ca triolein l

A. (CH3[CH2]14COO)3C3H5. B. (CH3[CH2]7CH=CH[CH2]5COO)3C3H5.

C. (CH3[CH2]16COO)3C3H5. D. (CH3[CH2]7CH=CH[CH2]7COO)3C3H5.

Cu 2 (A.11 296): Cho cc pht biu sau:

(a) Cht bo c gi chung l triglixerit hay triaxylglixerol.

(b) Cht bo nh hn nc, khng tan trong nc nhng tan nhiu trong dung mi hu c.

(c) Phn ng thy phn cht bo trong mi trng axit l phn ng thun nghch.

(d) Tristearin, triolein c cng thc ln lt l: (C17H33COO)3C3H5, (C17H35COO)3C3H5.

S pht biu ng l

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

Cu 8 (A.10 253): Cho s chuyn ho:

Tn ca Z l

A. axit oleic. B. axit linoleic. C. axit stearic. D. axit panmitic.

Cu 31 (B.11 153): Triolein khng tc dng vi cht (hoc dung dch) no sau y?

A. H2O (xc tc H2SO4 long, un nng). B. Cu(OH)2 ( iu kin thng).

C. Dung dch NaOH (un nng). D. H2 (xc tc Ni, un nng).

Cu 19 (A.08 263): Cho glixerin trioleat (hay triolein) ln lt vo mi ng nghim cha ring bit: Na, Cu(OH)2, CH3OH, dung dch Br2, dung dch NaOH. Trong iu kin thch hp, s phn ng xy ra l

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

Cu 12 (A.07 182): Thu phn hon ton 444 gam mt lipit thu c 46 gam glixerol (glixerin) v hai loi axit bo. Hai loi axit bo l

A. C15H31COOH v C17H35COOH. B. C17H33COOH v C15H31COOH.

C. C17H31COOH v C17H33COOH. D. C17H33COOH v C17H35COOH.

Cu 54 (C.07 231): trung ho lng axit t do c trong 14 gam mt mu cht bo cn 15ml dung dch KOH 0,1M. Ch s axit ca mu cht bo trn l

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

Cu 38 (C.10 268): trung ha 15 gam mt loi cht bo c ch s axit bng 7, cn dng dung dch cha a gam NaOH. Gi tr ca a l

A. 0,150.B. 0,200.C. 0,280.D. 0,075.

Cu 39 (B.08 195): X phng ho hon ton 17,24 gam cht bo cn va 0,06 mol NaOH. C cn dung dch sau phn ng thu c khi lng x phng l


Cu 26 (B.11 153): Cho 200 gam mt loi cht bo c ch s axit bng 7 tc dng va vi mt lng NaOH, thu c 207,55 gam hn hp mui khan. Khi lng NaOH tham gia phn ng l

A. 31,45 gam. B. 31 gam. C. 32,36 gam. D. 30 gam.

III. TNG HP

Cu 19 (C.09 182): Pht biu no sau y sai?

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

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

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

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

Cu 19 (C.12 169): Pht biu no sau y l ng?

A. Este isoamyl axetat c mi chui chn.

B. Etylen glicol l ancol no, n chc, mch h.

C. Axit bo l nhng axit cacboxylic a chc.

D. Ancol etylic tc dng c vi dung dch NaOH.

Cu 6 (A.07 182): Mnh khng ng l:

A. CH3CH2COOCH=CH2 cng dy ng ng vi CH2=CHCOOCH3.

B. CH3CH2COOCH=CH2 tc dng vi dung dch NaOH thu c anehit v mui.

C. CH3CH2COOCH=CH2 tc dng c vi dung dch Br2.

D. CH3CH2COOCH=CH2 c th trng hp to polime.

Cu 54 (B.10 174): Hp cht hu c mch h X c cng thc phn t C5H10O. Cht X khng phn ng vi Na, tha mn s chuyn ha sau

23

o

24

HCHCOOH

HSO (c)

Ni, t

XYEste c mi chui chn

++

Tn gi ca X l

A. pentanal.B. 2-metylbutanal.

C. 2,2-imetylpropanal.D. 3-metylbutanal.

Cu 18 (A.08 263): Pht biu ng l:

A. Phn ng gia axit v ru khi c H2SO4 c l phn ng mt chiu.

B. Phn ng gia este vi dung dch kim lun thu c sn phm l mui v ancol.

C. Khi thy phn cht bo lun thu c C2H4(OH)2.

D. Phn ng thy phn este trong mi trng axit l phn ng thun nghch.

Cu 28 (C.12 169): Cho cc este: etyl fomat (1), vinyl axetat (2), triolein (3), metyl acrylat (4), phenyl axetat (5). Dy gm cc este u phn ng c vi dung dch NaOH (un nng) sinh ra ancol l:

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

Cu 20 (B.11 153): Cho dy cc cht: phenyl axetat, anlyl axetat, metyl axetat, etyl fomat, tripanmitin. S cht trong dy khi thy phn trong dung dch NaOH (d), un nng sinh ra ancol l

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

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hoa hoc.pd.este - lipit

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