Answer :
The transformation of benzene to bromobenzene by going through a diazonium intermediate involves Nitration, reduction and Sandmeyer reaction.
Nitration is expressed as a process in which there is the replacement of a hydrogen atom with one or more nitro groups. The reaction usually occurs with high temperatures or we can say that the reaction is exothermic.
Reduction can be defines as the gain of electrons or a decrease in the oxidation state.
Sandmeyer Reaction is said to be a substitution reaction which is used to synthesize aryl halides from aryl diazonium salts. it can result in some substitution patterns that are not achievable by direct substitution. This reaction on an overall has two different steps Formation of diazonium salts from the amine group attached to an aromatic ring.
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