Question

An aromatic organic compound [A] on heating with NH₃ and Cu₂O at high pressure gives [B]. The compound [B] on treatment with the ice-cold solution of NaNO₂ and HCI gives [C], which on heating with Cu/HCl gives compound [A] again. Identify the compounds [A], [B] and [C]. Write the name of the reaction for the conversion of [B] to [C].

Answer 1

Conversion of B to C is called Sand-Meyer reaction

Answer 2

This process is called diazotization. 

A – Chlorobenzene
B – Benzenamine or Aniline
C – Benzene diazonium chloride