${\mathrm{CH}}_3{\mathrm{NH}}_2+{\mathrm{CHCl}}_3+\mathrm{KOH}\to$ (Nitrogen containing compound) $+\mathrm{KCl}+{\mathrm{H}}_2\mathrm{O}$.

The nitrogen containing compound is:

What are $\mathrm{P}$ and $\mathrm{Q}$?

In the following reaction, the structure of the major product '$\mathrm{X}$' is

The major product of the following reaction is ___________

In the reaction, the intermediate is

The compounds $\mathrm{P}, \mathrm{Q}$ and $\mathrm{S}$ are separately subjected to nitration using ${\mathrm{HNO}}_3/{\mathrm{H}}_2{\mathrm{SO}}_4$ mixture. The major product formed in each case respectively are

In the following set of aromatic compounds,

What is the correct order of reactivity towards Friedel crafts alkylation?

Among the compounds, which is not aromatic?