Question

The compound obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated HCl is :

• A. Propanol
• B. Propane
• C. Propene
• D. All of these

Answer 1

The correct option is B Propane

$C{H}_{3}C{H}_{2}CHO\underset{HCl}{\overset{Zn/Hg}{\to }}C{H}_{3}C{H}_{2}C{H}_3+H_{2}O$
Thus propane will be obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated HCl. The reaction is called Clemmensen reduction.