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Aldehydes, Ketones and Carboxylic Acids
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Preparation of aldehydes and ketones
NEET level
Single correct option
Difficulty 1 of 3
co042
Reductive ozonolysis (
O
X
3
, then
Zn
/
H
X
2
O
) of 2-methylbut-2-ene,
(
CH
X
3
)
X
2
C
=
CHCH
X
3
, gives
A
butanone and methanal
B
two molecules of propanone
C
propanone and ethanal
D
propanone and methanal
Answer: C
The
C
=
C
bond is cleaved and each carbon becomes a carbonyl carbon.
(
CH
X
3
)
X
2
C
becomes
(
CH
X
3
)
X
2
C
=
O
and
CHCH
X
3
becomes
CH
X
3
CHO
.
Practice Aldehydes, Ketones and Carboxylic Acids
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