Which compound gives reaction with 2,4-dinitrophenyl hydrazine?

Formaldehyde

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Acetone

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Acetaldehyde

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All of these

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Solution

The correct option is D All of these
$2, 4$ -Dinitrophenyl hydrazine reacts with aldehyde as well as ketone and is used to identify presence of carbonyl group in the substrate. 2,4-DNP gives orange colour with aldehydes and ketones.
Hence correct option is (d).
The reactions are as follows :

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Which compound gives reaction with 2,4-dinitrophenyl hydrazine?

The correct option is D All of these2,4-Dinitrophenyl hydrazine reacts with aldehyde as well as ketone and is used to identify presence of carbonyl group in the substrate. 2,4-DNP gives orange colour with aldehydes and ketones. Hence correct option is (d). The reactions are as follows :

The correct option is D All of these
$2, 4$ -Dinitrophenyl hydrazine reacts with aldehyde as well as ketone and is used to identify presence of carbonyl group in the substrate. 2,4-DNP gives orange colour with aldehydes and ketones.
Hence correct option is (d).
The reactions are as follows :