What is the product obtained from the reductive ozonolysis of benzene?

The correct order of reactivity towards Electrophilic Substitution Reaction $(E.S.R.)$ for the following compounds is:
$(i)$ Toluene
(ii) $m$-Methoxytoluene
(iii) Benzaldehyde
(iv) $p$-Nitrobenzaldehyde

Predict the major product of the reaction of $1$-ethyl-$3$-methylbenzene with $KMnO_4$ in an acidic medium under heating.

What is the characteristic chemical reaction of benzene?

Which of the following reactions is correct?

When excess $C_6H_6$ is reacted with $CH_2Cl_2$ in the presence of anhydrous $AlCl_3$,which of the following products is obtained?