Gammexane is obtained from benzene when it reacts with

Which of the following represents a Friedel-Crafts reaction?

During the mixed acid nitration of benzene,concentrated $HNO_3$ behaves like:

Complete the following reactions and identify $A, B, C$ respectively:
$(i)$ $\text{Phenol} + A \xrightarrow{\text{distill}} \text{Benzene}$
(ii) $\text{Benzenesulfonic acid} + B \xrightarrow{150-200^{\circ}C, \text{HCl, high pressure}} \text{Benzene}$
(iii) $\text{Chlorobenzene} \xrightarrow{C, \text{NaOH}} \text{Benzene}$

Catalytic hydrogenation of benzene gives

Identify the correct statement regarding the products $A$ and $B$ formed in the following reactions of benzene:
$1$. Benzene + $6Cl_2$ $\xrightarrow{AlCl_3 \text{ (excess)}}$ $A$
$2$. Benzene + $Cl_2$ (excess) $\xrightarrow{h\nu, 500 \ K}$ $B$