In the following substitution reaction $:$
Product $P$ formed is $:$

Identify the major product of the following reaction: $C_6H_5-NO_2 + CH_3-COCl \xrightarrow{AlCl_3} \text{Major product}$

Identify the principal organic product of the following reaction:
$1-bromo-2-fluoro-4-nitrobenzene + NaSCH_3 \rightarrow \text{product}$

Assertion : $S_{N}2$ reactions always proceed with inversion of configuration.
Reason : $S_{N}2$ reaction of an optically active aryl halide with an aqueous solution of $KOH$ always gives an alcohol with opposite sign of rotation.

In the reaction of $p$-chlorotoluene with $KNH_2$ in liquid $NH_3$,what is the major product?

$A$ 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