Chemistry - Halogen Derivative Question with Solution | TestHub

${\text{CH}}_{\text{3}}\text{Br}\stackrel{\text{KCN}}{\to }\underset{\text{A}}{{\text{CH}}_{\text{3}}\text{CN}}\stackrel{{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}}{\to }\underset{\text{B}}{{\text{CH}}_{\text{3}}\text{COOH}}\stackrel{{\text{SOCl}}_{\text{2}}\text{Py}}{\to }{\text{CH}}_{\text{3}}\text{COCl}\stackrel{{{\text{(C}}_{\text{2}}{\text{H}}_{\text{5}}\text{)}}_{\text{2}}\text{Cd}}{\to }\underset{\text{2-Butanone}}{{\text{C}}_{\text{2}}{\text{H}}_{\text{5}}{\text{COCH}}_{\text{3}}}$