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

Predict the product of the following reaction sequence:
$1$. Benzene + $CH_3CH_2CH_2COCl / AlCl_3$
$2$. $Zn(Hg), HCl$
$3$. $Br_2, FeBr_3$

The reaction of benzene with $CH_2Cl_2$ in the presence of $AlCl_3$ gives product $A$. Identify $A$.

Among the following,reaction$(s)$ which give$(s)$ tert-butylbenzene as the major product is(are):

On attachment of $H$ and $Br$ from the $HBr$ to $C_6H_5$ free radical,what can be formed?

Write about the physical properties of benzene.