CHEMISTRY

CARBONYL
Q.1 Which oneofthe following ismixed ketone:
(A) 3
3 CH
C
CH
|
|
O

 (B) 3
2
3 CH
C
CH
CH
|
|
O



(C) 3
5
6 CH
C
H
C
|
|
O

 (D)
)
P
(
H
C
C
H
C
CH
|
|
O
5
6
4
6
3



Q.2 In whichofthe following reactions product willbe aldehyde?
(A)
3
3
5
2
3
CH
CH
|
|
H
C
C
C
CH 




Zn
/
O
H
)
ii
(
O
)
i
(
2
3

 
 (B) CH3–CH=CH2






 
 8
2
2 )
CO
(
CO
/
H
/
CO
(C) CH3–CH=CH2
2
2
6
2
O
H
,
NaOH
H
B

 
 (D) CH3–CCH 





 
 4
2
4 SO
H
/
HgSO
/
HOH
Q.3 Gemdihalideonhydrolysis gives:
(A)Vic diol (B) Gemdiol
(C) Carbonylcompound (D) Carboxylic acid
Q.4 Which one ofthe following alcohols cannot be oxidised byK2CrO4?
(A)Ethanol (B)Tert butylalcohol (C) Isopropylalcohol (D)Allylalcohol
Q.5 Inthegivenreaction:
3
3
3
CH
|
CH
C
—
CH
CH
|
|
OH
OH

 
 
 4
HIO
(a) + (b)
(a) and (b) respectivelybe:
(A) CH3CHO and CH3CHO (B) CH3COCH3 and CH3CHO
(C) CH3COCH3 and CH3COCH3 (D) CH3COOH and CH3COCH3
Q.6 Acetophenone canbe obtained bythe distillationof:
(A) (C6H5COO)2Ca (B) (CH3COO)2Ca
(C) (C6H5COO)2Ca and (CH3COO)2Ca (D) (C6H5COO)2Ca and (HCOO)2Ca
Q.7 Arrange thesecompounds in decreasing orderofreactivityfor thenucleophilic additionreaction:
(I)Acid chloride (II)Aldehyde (III) Ketone (IV)Ester
Select the correct answer fromthe codes given below:
(A) I > II > III > IV (B) IV > III > II > I (C) III > II > I > IV (D) I > IV > II > III
Q.8 Two isomeric ketones, 3-pentanone and 2-pentanone can be distinguished by:
(A) I2 / NaOH only (B) NaSO3H only (C) NaCN / HCl (D) Both(A) and (B)
Q.9 Acetalor ketalis:
(A) Vic dialkoxycompound (B) , -dialkoxycompound
(C) -alkoxyalcohol (D) Gemdialkoxycompound

Q.10 Inthegivenreaction
5
2
2
2
3 H
COOC
CH
C
CH
CH
|
|
O


 


]
X
[ (A)




 

H
/
O
H
)
ii
(
LiAlH
)
i
(
2
4
OH
H
C
OH
CH
CH
C
CH
CH
|
|
O
5
2
2
2
2
3 




[X]willbe:
(A) HCHO (B)
OH
CH
|
OH
CH
2
2 
+ 
H
(C)
OH
CH
|
OH
CH
2
2


+ H
O

(D) HCN
Q.11 Consider the structureofgivenalcohol:
5
2
3
5
6
H
C
|
CH
C
H
C
|
OH


This alcoholcanbe prepared from:
(A) 3
5
6 CH
C
H
C
|
|
O

 and C2H5MgBr (B) 3
2
3 CH
C
CH
CH
|
|
O


 and C6H5MgBr
(C) 5
2
5
6 H
C
C
H
C
|
|
O

 and CH3MgBr (D)Allofthese
Q.12 Stabilityofgemdioldepends on:
(A) Steric hindrance (B) Presence of–I group ongemdiolcarbon
(C) Intramolecularhydrogenbonding (D)Allofthese
Q.13 Inthereaction sequence:
O
|
|
CH
C
H
C 3
5
6 
 


 


H
/
OH
NH2 [X] 
 
 5
PCl
[Y]
[Y]willbe:
(A) 3
5
6 NHCH
C
H
C
|
|
O

 (B) 5
6
3 H
C
NH
C
CH
|
|
O



(C) 2
2
5
6 NH
C
CH
H
C
|
|
O


 (D) Mixture of(A) and (B)

Q.14 Inthegivenreaction:
O
|
|
H
C
H
C 5
6 
 


 


H
/
OH
NH2
[X]
[X]willbe:
(A) Onlysyn oxime (B) Onlyantioxime
(C) mixture ofsynand antioxime (D) secondaryamide
Q.15 Schiff's base is prepared from:
(A) Carbonylcompound and primaryamine (B) Carbonylcompound and secondaryamine
(C) Carbonylcompound and tertiaryamine (D)Allofthese
Q.16 Schiff's reagent is used for the differentiationbetween:
(A) HCHO and CH3CHO
(B) CH3COCH3 and CH3CHO
(C) 3
2
5
6 CH
C
CH
H
C
|
|
O


 and 3
2
5
6 CH
CH
C
H
C
|
|
O



(D) HCHO and C6H5CHO
Q.17 Fehling solutiongivesredprecipitate with:
(A)Aromatic aldehyde (B) Saturated aliphatic aldehyde
(C) Unsaturatedaliphatic aldehyde (D) Both(B) and (C)
Q.18 Silver mirror test withTollens reagent isgivenby:
(A) C6H5CHO (B) CH2=CH–CHO
(C) C6H5–CH=CH–CHO (D)Allofthese
Q.19 In the reaction sequence, [X] is ketone :
[X] 



 



/
H
O
/
KMnO4 HOOC – (CH2)3– COOH
CH
|
CH3

[X]willbe:
(A) (B) (C) (D)
Q.20 Whichoneofthe following compounds willgive dimethylglyoxalwithSeO2:
(A)Acetone (B)Acetophenone (C) Ethylmethylketone (D) Propanaldehyde
Q.21 Inthegivenreaction

 
 2
SeO [X]
[X]willbe:
(A) (B) (C) (D)

Q.22 Consider thegivenreaction:
3
3 CH
C
CH
|
|
O

 



 

COOOH
H
C 5
6
3
3 CH
O
C
CH
|
|
O



The above reactionis known as :
(A)Baeyer-villigeroxidation (B) Oppenaur oxidation
(C) Periodate oxidation (D) Peroxide oxidation
Q.23 Acetone canbe converted into pinacolby:
(A) Mg/Hg/H2O (B)Zn/Hg/HCl (C) Na/Hg/H2SO4 (D)Allofthese
Q.24 Arrange acidityofgivenfour compoundsindecreasing order:
(I) 3
2
3 CH
C
CH
C
CH
|
|
|
|
O
O



 (II) 3
3 CH
C
CH
|
|
O

 (III) CHCH (IV) CH3–CHO
Select correct answer fromthe codes givenbelow:
Codes:
(A) I > IV> III > II (B) I > IV > II >III (C) III > I > IV > II (D) II > IV > I > III
Q.25 Whichone ofthe following compounds willnot give aldol:
(A) CH3CHO (B) CH3–CH2–CHO
(C) 3
2
3 CH
C
CH
CH
|
|
O


 (D) C6H5CHO
Q.26 Inthegivenreaction
X + Y
C
5
NaOH


 

3
3
CH
|
CHO
CH
CH
CH
|
OH



(X) and (Y) willrespectivelybe:
(A) CH3–CH2–CHO and CH3–CH2–CHO (B) CH3–CHO and CH3–CH2–CHO
(C) CH3–CHO and CH3–CHO (D) CH3–CHO and
3
3
3
CH
|
CHO
C
CH
|
CH


Q.27 Number ofproducts inthe givenreaction:
C6H5CHO + CH3–CHO 



H
O
Product
willbe
(A) One (B)Three (C) Two (D) Four
Q.28 Inthereaction:
+ 
 



/
H
O
[X]
[X] willbe :
(A) (B) (C) (D)

Q.29 Perkin reactionis catalysed by:
(A) NaOH (B) HCl (C) NH4Cl (D) Pyridine
Q.30 Product ofPerkinreaction is:
(A) , -unsaturated aldehyde (B) -cyclohexyl, -unsaturated aldehyde
(C) -Aryl-, -unsaturated acid (D)Allofthese
Q.31 The product ofthe reaction:
NO2 CHO + (C6H5–CH2CO)2O
[X]
willbe :
(A) C6H5–CH =CH–COOH (B) NO2 CH=CH–COOH
(C) C6H5–CH=C–COOH (D) NO2
5
6H
C
|
COOH
C
CH 

Q.32 Inthegivenreaction
C6H5CHO + X
Cl
NH
/
HOH
)
ii
(
Zn
)
i
(
4



 
 5
2
2
5
6 H
COOC
CH
CH
H
C
|
OH



[X]willbe:
(A) CH3–COOC2H5 (B) CH3–CH2–COOC2H5
(C) Br–CH2–COOC2H5 (D) CH–COOC2H5
Q.33 Thegivenreaction
C6H5–CHO + Br–CH2–COOC2H5




 

)
iii
(
Cl
NH
/
HOH
)
ii
(
Zn
)
i
(
4
C6H5–CH=CH–COOC2H5
is knownas :
(A) Perkinreaction (B) Knoevenagelreaction
(C) Reformatskyreaction (D) Claisen-Schmidt reaction
Q.34 Cannizzaro reactionis example of:
(A) Redoxreaction (B) Disproportionation (C) Both(A) and (B) (D) Onlyoxidation
Q.35 Acetaldehyde canbe converted into
OH
CH
|
OH
CH
C
CH
HO
|
OH
CH
2
2
2
2

 bywhich reagent?
(A) KOH (B) KOH followed by LAH
(C) excess of HCHO and KOH (D) KCN followed bySBH

Q.36 Metaformaldehydeis:
(A) Dimmer ofHCHO
(B)Trimerofformaldehyde
(C)Tetramerofformaldehyde
(D) Polymer in which number ofHCHO unit is more than 100
Q.37 Inthegivenreaction:
3
3 CH
C
CH
|
|
O


on
Distillati
SO
H
.
Conc 4
2



 
 [X]
[X] willbe :
(A) Methyloxide (B) Phorone
(C) 1, 3, 5-Trimethylbenzene (D) 2-Butyne
Q.38 Match list-Iwith list-II and select the correct answer usingthe codes give below the lists:
List-I List-II
(a) CH2=CH–CHO 

 
 4
NaBH
(i)Acetal
(b) C6H5CHO + Ph–NH2 



H
(ii) Schiff's base
(c) C6H5COCH3+CH3–CH2–NH–CH3 



H (iii) Unsaturatedalcohol
(d) RCHO + 2RCH2OH 



H
(iv)Enamine
Codes:
(a) (b) (c) (d)
(A) (iii) (ii) (iv) (i)
(B) (iii) (ii) (i) (iv)
(C) (ii) (iii) (iv) (i)
(D) (iv) (i) (ii) (iii)
Q.39 Match list-Iwith list-II and select the correct answer usingthe codes give below the lists:
List-I List-II
(a) C6H5CHO + HCHO 



H
O
C6H5CH2OH +

O
HCO (i)Cannizzaro reaction
(b) C6H5–H+CH3COCl 


 
 3
AlCl
.
Anhy
C6H5–CO–CH3 (ii) FriedelCrafts reaction
(c) C6H6+CO+HCl
2
2
2
Cl
Cu
ZnCl
.
Anhy



 
 C6H5–CHO (iii)Reimer-Tiemannreaction
(d)







 


H
)
ii
(
/
KOH
.
Alc
/
CHCl
)
i
( 3
(iv)Gattermann-kochaldehydesynthesis
Codes:
(a) (b) (c) (d)
(A) (i) (ii) (iii) (iv)
(B) (i) (ii) (iv) (iii)
(C) (i) (iii) (iv) (ii)
(D) (iv) (ii) (iii) (i)

Q.40 Cross Cannizzaro reaction is an example of:
(A) Redoxreaction (B) Disproportionation (C) bothA& B (D) Oxidation
Q.41 Whichwillgivesilver mirror test withTollens reagent :
(A) C6H5CHO (B) CH3–CHO (C) HCOOH (D)Allofthese
Q.42 Whichone ofthe combinations willgive propanaldehyde ondrydistillation?
(A) (C6H5COO)2Ca and (HCOO)2Ca (B) (CH3COO)2Ca and (CH3CH2–COO)2Ca
(C) (CH3–CH2–COO)2Ca and (HCOO)2Ca (D) (CH3COO)2Ca and (CH3COO)2Ca
Q.43 Grignard reagents do not give carbonylcompounds with:
(A) CO2 (B) RCOCl (C) RCN (D) RCOOR
Q.44 Inthereaction sequence:
Cyclohexane 

 
 2
Cl
/
hv (X) 


 


/
KOH
.
alc (Y) Zn
/
O
H
)
ii
(
O
)
i
(
2
3

 
 (Z)
(Z) willbe :
(A) Hexanal (B) 2-Hexanone (C) 3-Hexanone (D) Hexanedial
Q.45 Thegivenreaction
Acetone
butoxide
tertiary
Aluminium







 

is knows as :
(A) Kolbe reaction (B)Tischenko reaction (C) MPV reaction (D) Oppeneur oxidation
Q.46 Inthegivenreaction:
H2C O 

 
 4
NaBH
(X)
(Y)
(X) and (Y) are :
(A) CH2 OH and HO CH2 O
(B) CH3 O and HO CH2 O
(C) CH2 OH and HO CH2 OH
(D) CH2 OH and O

Q.47 Cyanohydrinofwhichcompound onhydrolysis willgive lactic acid?
(A) C6H5CHO (B) HCHO (C) CH3CHO (D) CH3–CH2–CHO
Q.48 Inthereaction sequence:
CH2OH–CHOH–CH2OH 


 


/
KHSO4 (X)




 

Al
)
O
H
C
( 3
5
2 (Y)
(Y)willbe:
(A) CH2=CH–CHO
(B) CH2=CH–CH2OH
(C) Mixture of CH2=CH–COOH and CH2=CH–CH2OH
(D) 2
2
2 CH
CH
CH
O
C
CH
CH
|
|
O






Q.49 Acetaldehydecannot give:
(A) Iodoformtest (B) Lucas test (C) Benedict test (D)Tollens test
Q.50 The reactionin which NaCN/C2H5OH/HOH is used is:
(A) Perkinreaction (B)Benzoincondensation
(C) Reimer-Tiemanreaction (D)Rosenmunds reduction
Q.51 Which one ofthe following reactions is used for the conversion ofketone into hydrocarbons?
(A)Aldolcondensation (B)W.K.reduction
(C) Reimer-Tiemanreaction (D) Perkin reaction
Q.52 Schiff's reagent givespink colour with:
(A)Acetaldehyde (B)Acetone (C)Acetic acid (D) Methylacetate
Q.53 Compound formedbythe reactionoffurfural( ) withethanolis
(A) an aldol (B) an acetal (C) a ketal (D) a hemiacetal

ANSWRE KEY
Q.1 C Q.2 B Q.3 C Q.4 B
Q.5 B Q.6 C Q.7 A Q.8 D
Q.9 D Q.10 B Q.11 D Q.12 D
Q.13 D Q.14 C Q.15 A Q.16 B
Q.17 D Q.18 D Q.19 B Q.20 C
Q.21 B Q.22 A Q.23 A Q.24 B
Q.25 D Q.26 B Q.27 C Q.28 D
Q.29 D Q.30 C Q.31 D Q.32 C
Q.33 C Q.34 A Q.35 C Q.36 B
Q.37 C Q.38 A Q.39 B Q.40 A
Q.41 D Q.42 C Q.43 A Q.44 D
Q.45 D Q.46 A Q.47 C Q.48 D
Q.49 B Q.50 B Q.51 B Q.52 A
Q.53 D