An ornanic compound (A) with molecular formula C_6H_7N gives (B) with HNO_2"/"HCl at 273 K. The aqueous solution of (B) on heating gives compound (C ) which gives violet colour with netural FeCl_3. Identify the compounds (A),(B) and (C ) and write the equations.

An ornanic compound (A) with molecular formula C_6H_7N gives (B) with

1.	An ornanic compound (A) with molecular formula C_6H_7N gives (B) with HNO_2"/"HCl at 273 K. The aqueous solution of (B) on heating gives compound (C ) which gives violet colour with netural FeCl_3. Identify the compounds (A),(B) and (C ) and write the equations.
Answer» Solution :(I) An ORGANIC compound (A) with molecular formula `C_6H_7N` is identified as Aniline `C_6H_5NH_2` (ii) Aniline on treatment with `HNO_2"/"HCl` at 273K gives a clear solution of Benzene diazonium chloride `C_6H_5N_2Cl` the compound (B). `{:(C_6H_5NH_2+HNO_2underset(273K)OVERSET(HCl)(to)C_6H_5N_2Cl),("Benzene diazonium chloride"):}` (III) An aqueous solution of benzene diazonium chloride on heating gives phenol `C_6H_5OH` and it is compound (C ). `C_6H_5N_2Cl+HOHoverset(triangle)(to)C_6H_5OH+N_2+HCl`