The reaction of aniline with ${HNO}_{2}$ followed by treatment of dilute acid gives.

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$C_{6} H_{5} NHOH$

$C_{6} H_{5} OH$

$C_{6} H_{6}$

$C_{6} H_{5} {NHNH}_{2}$

answer is B.

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Detailed Solution

The reaction of aniline with ${HNO}_{2}$ followed by treatment of dilute acid gives $C_{6} H_{5} OH$ .

Aniline reacts similarly to primary aliphatic amines. Aniline gives diazonium ion after treatment with nitrous acid. On further treatment with dilute acid undergo hydrolysis reaction. Aromatic diazonium ion is a very important intermediate to produce substituted benzene.

The final product depends on reagent use. Here the reagent used is dilute acid so the diazonium ion undergoes a hydrolysis reaction. The addition of water molecules is known as the hydrolysis reaction. Amines on hydrolysis give alcohol as the product while aniline gives phenol as the product.

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