Question

Give the chemical equation:

What happens when acetic acid reacts with SOCl₂ and the main product obtained is reduced with H₂ in the presence of Pd/BaSO₄?

Answer 1

\[\ce{\underset{(Acetic acid)}{CH3COOH} + SOCl2 ->CH3COCl ->[H2 {+} Pd/BaSO4] \underset{acetaldehyde}{CH3CHO}}\]