An organic compound (A) `C_(6)H_(6)O` gives violet colour with neutral `FeCl_(3)` solution. With `NH_(3)` in the presence of anhydrous `ZnCl_(3)` (A) gives (B) `(C_(6)H_(7)N)`. (A) with dimethyl sulphate gives ( C) `(C_(7)H_(8)O)`. What are (A), (B) and (C )? Explain the reactions.

Explanation

(i) An organic compound (A) `C_(6)H_(6)O` gives violet colour with netural `FeCl_(3)` solution.
(ii) With `NH_(3)` in the presence of anhydrous `ZnCl_(2)` (A) gives (B) `(C_(6)H_(7)N)`.
`C_(6)H_(5)OH + NH_(3) overset(ZnCl_(2)//473 K) to C_(6)H_(5)NH_(2) + H_(2)O`
(iii) (A) with dimethyl sulphate gives (C ) `(C_(7)H_(8)O)`.
`C_(6)H_(5)OH + underset("dimethyl sulphate")(CH_(3))_(2)SO_(4) overset(NaOH) to C_(6)H_(5)OH + underset("Methyl hydrogen sulphate")(CH_(3)OSO_(2)OH)`