The reaction of bromobenzene with bromomethane and sodium metal in dry ether to give toluene is known as:

$C_7H_8$ $\xrightarrow{3Cl_2 / \text{heat}} A$ $\xrightarrow{Fe/Br_2} B$ $\xrightarrow{Zn/HCl} C$. What is compound $C$?

Aryl halides are extremely less reactive towards nucleophilic substitution. Predict and explain the order of reactivity of the following compounds towards nucleophilic substitution:
$(I)$ $p$-nitrochlorobenzene
$(II)$ $2,4$-dinitrochlorobenzene
$(III)$ $2,4,6$-trinitrochlorobenzene

As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene?
$A$. The magnitude of negative charge is more on chlorine atoms.
$B$. The $C-Cl$ bond has partial double bond character.
$C$. $C-Cl$ bond is less polar.
$D$. $C-Cl$ bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine.
$E$. The $C-Cl$ bond is formed using $sp^2$ hybridised orbital of carbon.
Choose the correct answer from the options given below:

Which of the following is a Fittig reaction?

Arrange the following compounds in the decreasing order of their reactivity towards $OH^-$: $m$-nitrobromobenzene $(I)$,$2,4,6$-trinitrobromobenzene $(II)$,$p$-nitrobromobenzene $(III)$,and $2,4$-dinitrobromobenzene $(IV)$.