Question

Why is the bromination of the paraffin hydrocarbons is slower than chlorination?

(a) Because it’s milder

(b) It reacts faster

(c) Highly reactive

(d) None of the mentioned

I had been asked this question during an interview.

This key question is from Sandmeyer Reaction in section Halogenation of Unit Processes

Answer 1

Correct answer is (a) Because it’s milder

The best explanation: In general, methods similar to chlorination with chlorine and chlorides can be employed in the preparation of bromine derivatives. Because the reaction is milder, the bromination of the paraffin hydrocarbons does not proceed so rapidly or to a great degree; and with the lower permissible operating temperature, the formation of polybromine compounds occurs to a lesser extent.