The major product of the following reaction is:

Identify $A$ in the following reaction.
$A \text{ (excess)} + \text{Acetyl chloride (excess)}$ $\xrightarrow[AlCl_3]{\text{Anhydrous}} 1-\text{Chloroacetophenone} + 4-\text{Chloroacetophenone}$

Which among the following is $NOT$ an example of Wurtz reaction?

The correct sequential addition of reagents in the preparation of $3-$nitrobenzoic acid from benzene is:

Which one of the following is least reactive in a nucleophilic substitution reaction?

In the following reaction,the compound $(X)$ is ............ .