\(Ph-\overset{\bullet \bullet }{\mathop{N}}\,{{H}_{2}}\overset{{{H}^{\oplus }}}{\longleftrightarrow}Ph-\overset{\oplus }{\mathop{N}}\,{{H}_{3}}\)

$\begin{gathered} {C_2}{H_5}MgBr\,\,\xrightarrow{{ClCN}}\,\mathop {{C_2}{H_5}}\limits_{(a)} CN\,\xrightarrow{{{H_3}O{\,^ + }}}\,\,B \hfill \\ C{H_3}COC{H_3}\,\mathop {\xrightarrow[{NaOH}]{}}\limits^{{I_2}} \,X\,\,\mathop + \limits_{} \,\,CH{I_3}\,\mathop {\xrightarrow{{Ag}}}\limits_{} \,\,\,Y\, \hfill \\ \,{C_6}{H_5}N{H_2}\,\,\mathop {\xrightarrow[{HCL}]{}}\limits^{NaN{O_2}} \,\,P\,\,\,\xrightarrow{{CuCN}}\,\,Q\,\,\,\xrightarrow{{ + 4H}}\,\,R \hfill \\ \end{gathered} $

$I.$ ${Sn}-{HCl}$ $II.$ ${Sn}-{NH}_{4} {OH}$ $III.$ ${Fe}-{HCl}$ ${IV} . {Zn}-{HCl}$ $V.$ ${H}_{2}-{Pd}$ $VI.$ ${H}_{2}-$ રેની નિકલ
