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Question

Chemistry Question on Amines

Identify A and B in the following reaction sequence.conc

A

1

B

2

C

3

D

4

Answer

1

Explanation

Solution

The reaction mechanism involves nitration followed by hydrolysis:

Bromobenzene→Conc. HNO3Bromonitrobenzene (A)\text{Bromobenzene} \xrightarrow{\text{Conc. HNO}_3} \text{Bromonitrobenzene (A)}

Then:

Bromonitrobenzene (A)→NaOH, HClp-Bromophenol (B)\text{Bromonitrobenzene (A)} \xrightarrow{\text{NaOH, HCl}} \text{p-Bromophenol (B)}

Chemical Reaction