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NEET CHEMISTRYEasy

The product formed by the reaction of an aldehyde with a primary amine is:

A

Ketone

B

Carboxylic acid

C

Aromatic acid

D

Schiff base

Step-by-Step Solution

Aldehydes and ketones react with primary amines (R−NH2R-NH_2) in weakly acidic medium to form Schiff bases (also known as substituted imines). This is a nucleophilic addition-elimination reaction where the carbonyl oxygen is replaced by the =N−R=N-R group, eliminating a water molecule.

Reaction: R−CHO+R′−NH2→H+R−CH=N−R′(Schiff\Base)+H2OR-CHO + R'-NH_2 \xrightarrow{H^+} R-CH=N-R' (Schiff\Base) + H_2O

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