What is the product formed by the reaction of toluene with $KMnO_4$?

The order of decreasing reactivity towards an electrophilic reagent,for the following compounds,is:
$(i) \text{ Benzene} \quad (ii) \text{ Toluene} \quad (iii) \text{ Chlorobenzene} \quad (iv) \text{ Phenol}$

Draw the structure of the compound having molecular formula $C_7H_8$ and determine the number of $\sigma$ and $\pi$ bonds.

Which of the following will not produce an aromatic major product?

The reaction $2 C_6H_6 + CH_2Cl_2 \xrightarrow{AlCl_3, \Delta} ?$ gives the major product:

The reaction is given as:
Naphthalene + Oxalyl chloride $\xrightarrow{AlCl_3} [X]$ $\xrightarrow{Na-Hg, HCl \text{ (excess)}} [Y]$
Product $Y$ is: