Chemistry - Halogen Derivative Question with Solution | TestHub

Note: Isocyanides are hydrolyzed only by acids, but not by alkalies. It is because negative charge present on the carbon atom in isocyanides initially attracts electrophile (i.e.,${\mathrm{H}}^{+}$).
$\mathrm{R}-\stackrel{+}{\mathrm{N}}\equiv \stackrel{-}{\mathrm{C}}:+{\mathrm{H}}^{+}\to \mathrm{R}-\stackrel{+}{\mathrm{N}}\equiv \mathrm{C}\mathrm{H}\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }\mathrm{R}-\mathrm{N}=\stackrel{\mathrm{H}}{\stackrel{|}{\mathrm{C}}}-\mathrm{O}\mathrm{H}$
$\stackrel{\mathrm{T}\mathrm{a}\mathrm{u}\mathrm{t}\mathrm{o}\mathrm{m}\mathrm{e}\mathrm{r}\mathrm{i}\mathrm{s}\mathrm{m}}{\to }\mathrm{R}-\mathrm{N}\mathrm{H}-\stackrel{\mathrm{O}}{\stackrel{\left|\right|}{\mathrm{C}}}-\mathrm{H}\stackrel{{\mathrm{H}}^{+}/{\mathrm{H}}_2\mathrm{O}}{\to }\mathrm{R}-\mathrm{N}{\mathrm{H}}_2+\mathrm{H}\mathrm{C}\mathrm{O}\mathrm{O}\mathrm{H}$