Aromaticity is present in

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) $\xrightarrow{h\nu, 500 \ K}$ $B$

Identify the correct statements regarding the presence of a $-NO_{2}$ group in a benzene ring:
$A$. It increases the electron density of the benzene ring.
$B$. It deactivates the benzene ring towards electrophilic aromatic substitution.
$C$. It activates the benzene ring towards nucleophilic aromatic substitution.
$D$. It directs the incoming electrophile to the ortho and para positions.

The final product of the following reaction is ................
$C_6H_6 + 3Cl_2 \xrightarrow{\text{Sunlight}} ?$

When acetylene is passed through a red hot iron tube,compound $X$ is formed. Which one of the following reactions will yield $X$ as the major product?

Which of the following compounds reacts slower than benzene in electrophilic bromination?