Which of the following is not used in the Friedel-Crafts reaction?

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

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

The weight percentage of hydrogen in $Q$,formed in the following reaction sequence,is. . . .
[Given : Atomic mass of $H = 1, C = 12, N = 14, O = 16, S = 32, Cl = 35$ ]

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

Chlorobenzene $(X)$ when reacted with reagent '$A$' gets converted to phenol $(Y)$. The major product obtained from nitration of $X$ gets converted to $p$-nitrophenol $(Z)$ by reaction with reagent $B$. What are $A$ and $B$ respectively?