A compound with nitro group was reduced by Sn / HCl, followed by treatment with NaNO 2 / HCl and followed by phenol. The chromophore group in the final compound is

Question

A compound with nitro group was reduced by Sn / HCl, followed by treatment with NaNO 2 / HCl and followed by phenol. The chromophore group in the final compound is (A) NO 2 group (B) NH 2 group . (C) azo group (D) OH group

Tardigrade Admin · Accepted Answer

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

Q. A compound with nitro group was reduced by $S n / H Cl$ , followed by treatment with $N a N O_{2} / H Cl$ and followed by phenol. The chromophore group in the final compound is

$N O_{2}$ group

$N H_{2}$ group .

azo group

$O H$ group

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

Q. A compound with nitro group was reduced by Sn/HCl, followed by treatment with NaNO2​/HCl and followed by phenol. The chromophore group in the final compound is

NO2​ group

NH2​ group .