Question

Choose the correct option from the following:

• A. In the electrophilic substitution of toluene with $B{r}_2$, iron (III) bromide acts as a Lewis acid.
• B. In the reaction of toluene with $C{l}_2/FeC{l}_3$, ortho and para isomers are easily separated.
• C. Similar reaction with iodine is reversible in nature
• D. All of these

Answer 1

Answer: (D)

All of these

Chlorides of bromides can be easily prepared by electrophilic substitution with chlorine and bromine in the presence of Lewis acid catalysts like iron. The ortho and para isomers can be easily separated due to large difference in their melting points. Reactions with iodine are reversible in nature in presence of an oxidizing agent. So all teh options are correct.