Electrolytic reduction of nitrobenzene in strongly acidic medium finally gives

A4-aminophenol
Baniline
Cazoxybenzene
D3-aminophenol

Answer: A

In strong acid, the first-formed N-phenylhydroxylamine rearranges (Bamberger rearrangement), with water attacking the para position. The product is 4-aminophenol,

HO - C X_{6} H X_{4} - NH X_{2}

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