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Aldehydes, Ketones and Carboxylic Acids
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Preparation of aldehydes and ketones
JEE Main level
Single correct option
Difficulty 2 of 3
co017
2,2-Dichloropropane is boiled with aqueous
KOH
. The main organic product is
A
propene
B
propane-1,2-diol
C
propan-2-ol
D
propanone
Answer: D
Hydrolysis of a gem-dihalide gives a gem-diol,
(
CH
X
3
)
X
2
C
(
OH
)
X
2
, which loses water spontaneously. The product is
(
CH
X
3
)
X
2
C
=
O
.
Practice Aldehydes, Ketones and Carboxylic Acids
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