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

Which of the following statements are correct?
$A$. The $C-Cl$ bond in chlorobenzene is shorter than in chloromethane.
$B$. It is more difficult to replace chlorine from chlorobenzene than from benzyl chloride.
$C$. The $C-Cl$ bond in chlorobenzene has some double bond character.
$D$. Chlorobenzene on chlorination gives $m$-dichlorobenzene.

Which of the following is most reactive toward nucleophilic aromatic substitution (hydrolysis)?

In the given reaction sequence,the conversion of $Y$ to $Z$ is:

With respect to chlorobenzene,which of the following statements is not correct?

Replacement of $Cl$ of chlorobenzene to give phenol requires drastic conditions,but $Cl$ of $2,4$-dinitrochlorobenzene is readily replaced. This is because,