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Q.
First product of the reaction between RCHO and NH2NH2 is
AIPMTAIPMT 2000Aldehydes Ketones and Carboxylic Acids
Solution:
It is a simple condensation reaction which proceeds with elimination of water.
Aldehyde $RCHO$ reacts with hydrazine $NH _{2} NH _{2}$ to form hydrazone $RCH = NNH _{2}$.
