Nitration of phenyl benzoate yields the product

Identify the products $A$ and $E$ in the following reaction sequence:

$CH \equiv CH$ $\xrightarrow{\text{Red Hot Fe tube}} A$ $\xrightarrow[\text{Dark}]{Cl_2 / FeCl_3} B$ $\xrightarrow[\text{Anhy. } AlCl_3]{CH_3 - Cl} C$ (Major)
Product '$C$' is

In the following reaction,the compound $C$ is:
${C_7}{H_8}$ $\xrightarrow[\Delta]{3Cl_2} A$ $\xrightarrow{Br_2/Fe} B$ $\xrightarrow{Zn/HCl} C$

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

In the following series of reactions,identify the major products $A$ and $B$ respectively.