a
(a) \(\mathop {C{H_3} - C{H_2} - C{H_2}OH}\limits_{{\text{(A)}}} \xrightarrow{{[O]}}\mathop {C{H_3} - C{H_2} - CHO}\limits_{{\text{(B)}}} \) \(C{H_3} - C{H_2} - \mathop {\mathop C\limits^| }\limits^H = O + {H_2}NNHCON{H_2}\xrightarrow{{HCl}}\) \(C{H_3}C{H_2}CH = N - NHCON{H_2}\)