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Este gia s sinh vin TpHCM 01289702262 [email protected] 1:
Este
Cu 1 : Este no n chc mch h c CTPT chung l:A. CnH2n+2O2 (n>1)
C. CnH2nO2 (n1)B. CnH2n+2O2 (n2) D. CnH2nO2 (n2)
Cu 2 : Este Y c to thnh t axit no, n v ancol no, n. CTCT ca Y
l:A. CnH2n-1COOCmH2m+1 C. CnH2n+1COOCmH2m-1B. CnH2n-1COOCmH2m-1 D.
CnH2n+1COOCmH2m+1
Cu 3 : Este X c to bi ancol no n chc v axit khng no n chc (c mt
lin kt i C=CCT tng qut l:
A. CnH2n-2O2 (n2) C. CnH2n-2O2 (n3)B. CnH2n-2O2 (n4) D. C n H 2n
O 2 (n 4)
Cu 4 : Cho cc cht RCOOR (1) , RCOOH (2) , R-CO-O-COR (3) ,
R-CO-Cl (4). Chn cch sp xcng thc cho ph hp?
Axit cacboxylic Anhidrit axit Este Halogenua axitA. 1 2 3 4B. 2
5 3 4C. 2 3 1 4D. 2 3 5 4
Cu 5 : ng vi CTPT C4H8O2 c bao nhiu este ng phn ca nhau:A.2 B.3
C.4 D.5
Cu 6 : ng vi CTPT C4H6O2 c s este ng phn mch h (k c ng phn hnh
hc) l:A.3 B.4 C.5 D.6
Cu 7 : X c CTPT C2H4O2. S hp cht hu c ca X c th tham gia phn ng
trng bc l:A.1 B.2 C.3 D.4
Cu 8 : Phn ng thu phn este trong mi trng kim khi un nng gi l:A.
Hidrat ho B. X phng ho C. Cracking D. S ln men
Cu 9 : S ng phn cu to c nhm C=O ng vi CTPT C2H4O2 l:A. 1 B. 2 C.
3 D. 4
Cu 10 : Hp cht X c CTCT: CH3OOCCH2CH3. Tn gi ca X l:A. Etyl
axetat C. Metyl propionatB. Metyl axetat D. Propyl axetat
Cu 11 : Este vinyl axetat to ra t :A. CH3COOH v CH2=CHOH B.
CH3COOH v CH3CHOC. CH3COOH v CH CH D.CH3COOH v CH2=CH2
Cu 12 : Este phenol axetat to ra t:A. Axit axetic v phenolB.
Anhidrit axetic v metanolC. Ancol metylic v axit benzoicD. Axit
Axetic v ancol metylic
Cu 13 : Cho phn ng: RCOOH + ROH < = > RCOOR + H2O phn ng
xy ra vi hiu sut cao th:
A. Thm axit sunfuric c voB. Tng lng RCOOH hoc ROHC. Hp th ht hi
nc sinh raD. C ba p n trn.
Mi thc mc xin lin h:[email protected] s sinh vin nhn dy km
Ton L Ho tt c cc kh
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Este gia s sinh vin TpHCM 01289702262 [email protected] 14 :
Pht biu no sau y khng ng?
A. Phn ng este ho xy ra hon tonB. Khi thu phn este no mch h
trong mi trng axit v c cho axit hu c v ancolC. Phn ng gia axit hu c
v ancol l phn ng thun nghchD. Khi thu phn este no mch h trong mi
trng kim cho mui v ancol
Cu 15 : Cch no sau y c th dng iu ch etyl axetat?A. un hi lu hn
hp etanol, gim v axit sunfuric cB. un hi lu hn hp axit axetic, ru
trng v axit sunfuric cC. un si hn hp etanol, axit axetic v axit
sunfuric c trong cc thu tinh chu nhit.D. un hi lu hn hp etanol,
axit axetic v axit sunfuric c
Cu 16 : Dy cht c sp xp theo chiu nhit si tng dn ca cc cht l:A.
CH3COOH, CH3COOC2H5, CH3CH2CH2OHB. CH3COOH, CH3CH2CH2OH,
CH3COOC2H5C. CH3CH2CH2OH, CH3COOH, CH3COOC2H5D. CH3COOC2H5,
CH3CH2CH2OH, CH3COOH
Cu 17: Cho cc cht c CTCT sau y:C2H5COOCH3 (1) ; CH3OOCCH3 (2) ;
HCOOC2H5 (3) ; CH3COOH (4) ; CH3CH(COOC2H5)COOCH3 (5) ;HOOCCH2CH2OH
(6) ; CH3OOC-COOC2H5 (7) Nhng cht thuc loi este l:
A. 1, 2, 3, 4, 5, 6 C. 1, 2, 3, 5, 7B. 1, 2, 4, 6, 7 D. 1, 2, 3,
6, 7
Cu 18 : Cht X c CTPT C4H8O2. Khi X tc dng vi dung dch NaOH sinh
ra cht Y c cng thc C2H3O2 Nav cht Z c cng thc C2H6O. CTCT ca X
l:
A. HCOOC3H7 C. C2H5COOCH3B. CH3COOC2H5 D. HCOOC3H5
Cu 19 : Hp cht X n chc c cng thc n gin nht l CH2O, tc dng c vi
dung dch NaOH nhkhng tc dng c vi Na. CTCT ca X l:
A. C2H5COOH C. CH3COOCH3B. HCOOCH3 D. HOCCH2OH
Cu 20 : Thuc dng xoa bp gim au c tn ho hc l metyl salixylat, iu
ch t phn ng esteaxit salixylic (hay cn gi l axit 0-hidroxibenzoic)
v ancol metylic. CTCT ca thuc xoa bp l:A. 0-HO-C6H4-COOCH3 C.
0-HO-C6H4-COOCH3B. 0-CH3O-C6H4-COOH D. 0-HO-C6H4-COOCH3
Cu 21 : Khi thu phn 1 mol este ngi ta thu c 1 mol mui v 1 mol
andehit. Este l:A. CH3COOCH=CH2 C. CH3COOC(CH3)=CH2B. CH2=CHCOOCH3
D. CH3COOCH2CH=CH2
Cu 22 : Aspirin l thuc cm c iu ch bng cch cho axit salixylc tc
dng vi anhidrit axetiaspirin l:
A. 0-HO-C6H4-COOCH3 C. 0-HOOC-C6H4-OOC-CH3B. 0-HOOC-C6H4-COOCH3
D. 0-HOOC-C6H4-OCH3
Cu 23 : Thu phn este c CTPT l C4H8O2 (vi xc tc axit), thu c hai
sn phm hu c X v Y. Tth iu ch trc tip ra Y (bng 1 phn ng duy nht).
Vy X l:
A. ancol metylic B. etyl axetat C. axit fomic D. ancol etylicCu
24 : Mnh khng ng l:
A. CH3CH2COOCH=CH2 cng dy ng ng vi CH2=CHCOOCH3B.
CH3CH2COOCH=CH2 tc dng vi dung dch NaOH thu c andehit v muiC.
CH3CH2COOCH=CH2 tc dng c vi dung dch Br 2
Mi thc mc xin lin h:[email protected] s sinh vin nhn dy km
Ton L Ho tt c cc kh
mailto:[email protected]:[email protected]:[email protected]:[email protected]
