Among the following compounds the one that is most reactive towards electrophilic nitration is

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

The reaction of toluene with Cl₂ in presence of FeCl₃ gives X and reaction in presence of light gives Y. Thus, X and Y are

In a set of reactions, ethylbenzene yielded a product D.

D would be