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Question

Chemistry Question on Amines

A compound with nitro group was reduced by Sn/HClSn / HCl, followed by treatment with NaNO2/HClNaNO _{2} / HCl and followed by phenol. The chromophore group in the final compound is

A

NO2NO _{2} group

B

NH2NH _{2} group .

C

azo group

D

OHOH group

Answer

azo group

Explanation

Solution

The chromophore group in the final compound is azo group (N=N)(-N=N-)