‘$\mathrm{X}$’ is:  

Match List$-\mathrm{I}$ with List$-\mathrm{II}:$

Choose the most appropriate match

Given below are two statements:

Statement-I : $2$ -methylbutane on oxidation with ${\mathrm{KMnO}}_4$ gives $2$ -methylbutan-$2$-ol.

Statement-II : $\mathrm{n}$ -alkanes can be easily oxidised to corresponding alcohol with ${\mathrm{KMnO}}_4$.

Choose the correct option :

Among the following, the aromatic compounds are :

Choose the correct answer from the following options :

The product "$\mathrm{A}$" and "$\mathrm{B}$" formed in above reactions are