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Which of the following reagents cannot b...

Which of the following reagents cannot be used to oxidize primary alcohols to aldehydes?

A

`CrO_3` in anhydrous medium

B

`KMnO_4` in acidic medium

C

Pyridinium chloro chromate

D

Heating in presence of Cu at 573 K

Text Solution

Verified by Experts

The correct Answer is:
B
`KMnO_4` in acidic medium cannot be used to oxidise primary alcohols to aldehydes because I convert primary alcohols into carboxylic acid the direct oxidation of primary alcohols to carboxylic acids can be carried out using `KMnO_4`
`CH_3CH_2OH overset(KMnO_4)underset(H^+) rarr CH_3COOH`
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