Correct Answer - A
Reduction of of nitrobenzene in neutral medium (zinc dust and ammonium chloride ) converts nitrobenzome to corresponding hydroxyylomine Phenyihydroxylamine is also prepared by the electrolytic reduction of nitrobenzene in an aqueous solution of acetic acid containing sodium acetate Phenylhydroxylamine is a powerful reducing agent For example it reduces ammoniacal silver nitrate (Tollens reagent) and Fehling s solution It readily absorbs oxygen from air to from nitrosobenzenev which reacts with unchanged phenylhydroxlamine to yield azoxybenzene
`C_(6)H_(5)NHOH+C_(6)H_(5)NOrarrC_(6)H_(5)overset(Obar)overset(|)N overset(+)= NC_(6)H_(5)H_(2)O`
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