Benzene was discovered by

The major product$(s)$ of the following reaction is (are):

The correct order of reactivity towards the electrophilic substitution of the compounds aniline $(I)$,benzene $(II)$,and nitrobenzene $(III)$ is

The correct order of reactivity of $(I)$ Aniline,$(II)$ Benzene,and $(III)$ Nitrobenzene towards electrophilic substitution reaction is .....

$1,4-$dimethylbenzene on heating with anhydrous $AlCl_{3}$ and $HCl$ produces

For the given compounds,what is the decreasing order of the rate of electrophilic aromatic substitution?