Which of the following reagent(s) will selectively oxidize ethanol () to acetaldehyde () without yie — Aldehydes Ketones and Carboxylic Acids Chemistry Question

💡 Solution & Explanation

PCC, Collin's reagent, and heated Cu at 573 K (vapour phase dehydrogenation) selectively convert primary alcohols to aldehydes. Acidified $KMnO_4$ is a strong oxidizing agent that would unavoidably drive the reaction further to acetic acid ($CH_3COOH$).