Identify the major product formed in the following reaction.

Chlorobenzene $\xrightarrow[\text { Antilyctous } \mathrm{FeCl}_3]{\mathrm{Cl}_2}$ Product

Which of the following compounds has difficulty in breaking of $\mathrm{C}-\mathrm{X}$ bond?

Which of the following compounds forms 1-bromo-1-methylcyclohexane when treated with HBr ?

Which of the following has highest reactivity towards nucleophilic substitution reaction involving cleavage of $\mathrm{C}-\mathrm{Cl}$ bond?