The lower reactivity of the chlorine atom in $CH_2 = CH - Cl$ is due to:

The only $o, p-$ directing group which is deactivating in nature is

Trichloroacetaldehyde,$CCl_3CHO$,reacts with chlorobenzene in the presence of sulphuric acid and produces:

Identify $[A]$,$[B]$,and $[C]$,respectively in the following reaction sequence $:$

Identify $A$ and $B$ in the following reaction sequence.

$A$ mixture of $1 \, mol$ of benzene and $1 \, mol$ of nitrobenzene is reacted with $1 \, mol$ of acetyl chloride in the presence of $AlCl_3$. The major product$(s)$ is/are