Question

Match each type of reduction to its reagent:

• A. Clemmensen Reduction → Zinc amalgam with hydrochloric acid
• B. Wolff-Kishner Reduction → Hydrazine and potassium hydroxide with heat
• C. Rosenmund Reduction → Hydrogen gas with palladium on barium sulfate

Hint:

Always associate the type of reduction with the environment and reagents. Clemmensen is acidic, Wolff-Kishner is basic, and Rosenmund uses palladium.

Answer 1

The Correct Option is A

These three named reductions are grouped together because they cover the acidic, basic, and catalyst-poisoning routes to reducing a carbonyl group. Zinc amalgam with hydrochloric acid (Clemmensen) works in acid, hydrazine with potassium hydroxide (Wolff-Kishner) works in base, and hydrogen with palladium on barium sulfate (Rosenmund) stops cleanly at the aldehyde. All three pairings as listed are correct, so the answer is option (A).