Question

Choose the correct answer among the alternatives given :Bromination of methane in presence of sunlight is a:

• A. nucleophilic substitution
• B. free radical substitution
• C. electrophilic substitution
• D. nucleophilic addition

Answer 1

Answer: (B)

free radical substitution

The reaction between bromine and methane happens in the presence of sunlight. $C{H}_4+B{r}_2\to C{H}_3+HBr$. The product obtained is bromomethane. One of the hydrogen atom in the methane is replaced by a bromine atom. So this is substitution reaction. During the chain reaction, a new species is generated at the end. The overall process is called as free radical substitution.