Which product is obtained by the oxidation of ethylbenzene with $KMnO_4$?

Identify the compound $(X)$ in the following reaction:
[Image of $1,3$-dinitrobenzene reacting with $HNO_3 + H_2SO_4$ to form $(X)$]
Compound $(X)$ is:

Total number of aromatic compounds from the following is:

$Y$ in the above sequence of reaction is

Benzene + $CH_3-CH_2-CH_2-Cl$ $\xrightarrow{AlCl_3}$ the product is:

Product $(A)$ is