An organic compound 'A' on reaction with NH_3 followed by heating gives compound B. Which on further strong heating gives compound C ( C_8 H_5 NO_2).…

An organic compound 'A' on reaction with $\displaystyle \mathrm{NH}_3$ followed by heating gives compound B. Which on further strong heating gives compound $\displaystyle \mathrm{C}\left(\mathrm{C}_8 \mathrm{H}_5 \mathrm{NO}_2\right)$. Compound C on sequential reaction with ethanolic KOH , alkyl chloride and hydrolysis with alkali gives a primary amine. The compound A is :