The product $(R)$ in the following synthetic scheme is

Rank the following compounds in order of decreasing rate of reaction with alkoxide ion $(CH_3CH_2O^{-})$ in a nucleophilic aromatic substitution reaction:
$1$. $1$-bromo-$2$-nitrobenzene
$2$. $1$-bromo-$3$-nitrobenzene
$3$. $1$-bromo-$2,4$-dinitrobenzene
$4$. $1$-bromo-$3,4$-dinitrobenzene

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

The highest yield of $m-$ product is possible by the electrophilic substitution of the following:

Two statements are given below:
Statement $I$: Chlorobenzene on nitration gives $1-$chloro$-4-$nitrobenzene as the major product.
Statement $II$: Chlorobenzene undergoes nitration more slowly than benzene.
Identify the correct answer.

When nitrobenzene is reacted with $Br_2$ in the presence of $FeBr_3$,the major product formed is $m$-bromonitrobenzene. This is because: