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JEE Main levelSingle correct optionDifficulty 2 of 3nc096

Nitrobenzene is reduced with $Zn$ and aqueous $NH X_{4} Cl$ (neutral medium). The main product is

Aaniline, $C X_{6} H X_{5} NH X_{2}$
BN-phenylhydroxylamine, $C X_{6} H X_{5} NHOH$
Cazoxybenzene
Dhydrazobenzene

Answer: B

In neutral medium reduction stops at the hydroxylamine stage:

C X_{6} H X_{5} NO X_{2}

takes up four H atoms to give

C X_{6} H X_{5} NHOH

and

H X_{2} O

. Complete reduction to aniline needs acidic metal conditions or catalytic hydrogenation.

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