Aldehydes and Ketones 1303
1. Benzophenone can be converted into benzene
using
[Tamil Nadu CET 2001]
(a) Fused alkali
(b) Anhydrous
3
AlCl
(c) Sodium amalgam in water
(d) Acidified dichromate
2. The reagent(s) which can be used to distinguish
acetophenone from benzophenone is (are)
[CBSE PMT 1990]
(a) 2, 4-dinitrophenyl hydrazine
(b) Aqueous solution of
3
NaHSO
(c) Benedict reagent
(d)
2
I
and
32CONa
3. When acetaldehyde is heated with Fehling
solution, it gives a red precipitate of [MP PET 1989, 93;
IIT 1982; MP PET/PMT 1998; RPM T 2002]
(a)
Cu
(b)
CuO
(c)
OCu 2
(d)
2
)(OHCu
4. The general order of reactivity of carbonyl
compounds for nucleophilic addition reactions is[CBSE PMT 1995]
(a)
OCArOCRArCHORCHOOCH 222
(b)
OCHOCRRCHOOCArArCHO 222
(c)
OCHRCHOArCHOOCROCAr 222
(d)
ArCHORCHOOCArOCROCH 222
5. Which of the following gives an alcohol and salt
of carboxylic acid when reacted with conc. NaOH
[MP PMT 1999]
(a)
CHOCH 3
(b)
CHOHC 56
(c)
33 COCHCH
(d)
356 COCHHC
6. Which of the following compounds would
undergo Cannizzaro's reaction
[CPMT 1989; AFMC 1991; MNR 1995 ]
(a) Propionaldehyde
(b) Benzaldehyde
(c) Bromobenzene
(d) Acetaldehyde
7.
HNaOH /
reacts with [BHU 2003]
(a)
356 OCHHC
(b)
OHCH 3
(c)
3
||
3CH
O
CCH
(d)
OHHC 52
8. The product of following reaction
is
/
2 PtH
O
[Kerala CET 2000]
(a) (b)
(c) (d)
9. Which of the following aldehydes is most reactive
towards nucleophilic addition reactions
[Roorkee 1992; RPMT 1997]
(a) HCHO (b)
CHOCH3
(c)
CHOHC 52
(d)
33 COCHCH
10. Which one of the following gives iodoform test
[AIIMS 1996]
(a) Formaldehyde
(b) Ethyl alcohol
(c) Benzyl alcohol
(d) Benzaldehyde
11. The active ion in Tollen's reagent is
(a)
Cu
(b)
23)(NHCu
(c)
Ag
(d)
23)(NHAg
12. Among the following compounds, which will react
with acetone to give a product containing
NC
[IIT 1998]
(a)
256 NHHC
(b)
NCH 33)(
(c)
5656 HNHCHC
(d)
256 NHNHHC
CH3
OH
OH
3
CH
H
OH
