Which aromatic compound possesses a seven-membered ring?

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

Give methods of preparation for benzene.

Identify the main product of the reaction between benzene and $1$-chloropropane in the presence of $AlCl_3$.

If $p$-methoxytoluene is nitrated,the major product is:

In the nitration of benzene using a mixture of concentrated $HNO_3$ and concentrated $H_2SO_4$,how does nitric acid behave in the nitrating mixture?