(a) An aromatic compound 'A' ( C_7 H_6 O_2) on reaction with aqueous ammonia and heating forms compound ' B '. ' B ' on heating with Br_2 and…

An aromatic compound 'A' $\displaystyle \left(\mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}_{2}\right)$ on reaction with aqueous ammonia and heating forms compound ' B '. ' B ' on heating with $\displaystyle \mathrm{Br}_{2}$ and alcoholic potash forms a compound 'C' of molecular formula $\displaystyle \mathrm{C}_{6} \mathrm{H}_{7} \mathrm{~N}$. Write the reactions involved and identify 'A', 'B', 'C'.

A compound 'A' on reduction with iron scrap and hydrochloric acid gives compound 'B' with molecular formula $\displaystyle \mathrm{C}_{6} \mathrm{H}_{7} \mathrm{~N}$. Compound 'B' on reaction with $\displaystyle \mathrm{CHCl}_{3}$ and alcoholic KOH produces an obnoxious smell of carbylamine due to the formation of 'C'. Identify 'A', 'B' and 'C' and write the chemical reactions involved.