Passing the vapours of a mixture of acetic acid and formic acid over heated catalyst at yields which — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

The catalytic bimolecular decarboxylative condensation of acetic acid ($CH_3COOH$) and formic acid ($HCOOH$) over heated $MnO$ merges the methyl and hydrogen groups onto a new carbonyl, yielding acetaldehyde.