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Question

Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

First product of the reaction between RCHORCHO and NH2NH2NH_2NH_2:

A

RCH=NNH2RCH = NNH_2

B

RCH=NHRCH = NH

C

RCH2NH2RCH_2NH_2

D

RCON3RCON_3

Answer

RCH=NNH2RCH = NNH_2

Explanation

Solution

This is a straightforward condensation reaction that occurs through the elimination of water. When an aldehyde, denoted as RCHORCHO, reacts with hydrazine (NH2NH2)(NH_2NH_2), it results in the formation of a hydrazone, represented as RCH=NNH2RCH=NNH_2.

formation of a hydrazone

So, the correct option is (A): RCH=NNH2RCH = NNH_2