Benzene is obtained from

Identify the major product $P$ formed in the following reaction.

Find the decreasing order of reactivity towards electrophilic substitution reaction for the following compounds:
$I$: Toluene $(C_6H_5CH_3)$
$II$: Benzene $(C_6H_6)$
$III$: Anisole $(C_6H_5OCH_3)$
$IV$: Trifluoromethylbenzene $(C_6H_5CF_3)$

In benzene,the $1,3$ position is known as what?

$A$ $C_8H_{10}$ hydrocarbon is nitrated by $HNO_3$ and sulphuric acid. Two,and only two,$C_8H_9NO_2$ isomers are obtained. Which of the following fits this evidence?

Which among the following is a non-benzenoid aromatic compound?