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Tardigrade
Question
Chemistry
Cannizaro reaction is performed by
Q. Cannizaro reaction is performed by
1271
224
UPSEE
UPSEE 2009
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A
formaldehyde
B
formaldehyde and acetaldehyde
C
benzaldehyde
D
formaldehyde and benzaldehyde
Solution:
Cannizaro reaction is given by only those aldehydes and ketones in which
α
- Hatom is absent.
Formaldehyde
(
H
C
H
O
)
and benzaldehyde
(
C
6
H
5
C
H
O
)
both due to the absence of
α
−
H
atom undergo Cannizaro reaction as
2
H
C
H
O
conc
.NaOH
methyl alcohol
C
H
3
O
H
+
sodium formate
H
COON
a
