Compounds Containing Nitrogen

$\mathrm{A} \xrightarrow[\text { (i) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{NaH}} \mathrm{B} \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{SO}_4, \Delta]{\text { (i) } \mathrm{EOH}} \mathrm{C}$

' A ' shows positive Lassaign's test for N and its molar mass is 121 .

' B ' gives effervescence with aq $\mathrm{NaHCO}_3$.

'C' gives fruity smell.

Identify $\mathrm{A}, \mathrm{B}$ and C from the following.