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Tardigrade
Question
Chemistry
Which of the following compounds will give butanone on oxidation with alkaline KMnO4 solution?
Q. Which of the following compounds will give butanone on oxidation with alkaline
K
M
n
O
4
solution?
2029
222
Aldehydes Ketones and Carboxylic Acids
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A
Butan-
1
-ol
12%
B
Butan-
2
-ol
62%
C
Both of these
21%
D
None of these
5%
Solution:
Alkaline
K
M
n
O
4
is a strong oxidising agent. it oxidises primary alcohols to aldehyde and secondary alcohols to ketone
(i)
(
1
∘
)
C
H
3
C
H
2
C
H
2
C
H
2
−
O
H
(
O
)
K
M
n
O
4
(
a
l
k
l
.
)
Butanol
C
H
3
C
H
2
C
H
2
C
H
3
(ii)
(
2
∘
)
C
H
3
C
H
2
O
∣
H
C
H
C
H
3
(
O
)
Butanone
C
H
3
C
H
2
O
∣∣
C
C
H
3