Which of the following reactions will NOT give primary amine as the...

Lithium aluminium hydride is a strong reducing agent. It converts amides, cyanides and isocyanides to amines.

${CH}_{3}{CONH}_{2}\mathop{\to}_{( ii ) {H}_{3}{O}^{+}}^{( i ) {LiAlH}_{4}}{CH}_{3}{CH}_{2}{NH}_{2}\left(primaryamine\right)$

${CH}_{3}CN\mathop{\to}_{( ii ) {H}_{3}{O}^{+}}^{( i ) {LiAlH}_{4}}{CH}_{3}{CH}_{2}{NH}_{2}\left(Primaryamine\right)$

${CH}_{3}NC\mathop{\to}_{( ii ) {H}_{3}{O}^{+}}^{( i ) {LiAlH}_{4}}{CH}_{3}{NHCH}_{3}\left(Secondaryamine\right)$

In Hoffmann bromamide reaction, primary amides converts to primary amines with loss of one carbon.

${CH}_{3}{CONH}_{2}\overset{{Br}_{2} / KOH}{\to}{CH}_{3}{NH}_{2}$