JEE Main · 2021 · 31 Aug 2021 · Shift 2 · Hydrocarbons

Identify correct A, B and C in the reaction sequence given below :

Answer: (B)

Solution

Nitration of benzene with concentrated

HN O_{3}

and

H_{2} S O_{4}

gives nitrobenzene (A). The nitro group is a meta-director, so chlorination with

C l_{2}

and anhydrous

AlC l_{3}

gives m-chloronitrobenzene (B). Reduction with

Fe/HCl

converts the nitro group to an amino group, giving m-chloroaniline (C). So A is nitrobenzene, B is m-chloronitrobenzene and C is m-chloroaniline.

JEE Main · 2021 · 31 Aug 2021 · Shift 2 · Single correct option