Question:
Clemmensen reduction involves the formation of an alkane from a ketone on treatment with
Clemmensen reduction involves the formation of an alkane from a ketone on treatment with
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Remember: "Clemmensen is Acidic (\(HCl\)), Wolff-Kishner is Basic (\(KOH\))". Both do the exact same job: turning a carbonyl group (\(C=O\)) into an alkane.
Updated On: Jun 24, 2026
- \(H_2\) in the presence of Ni catalyst
- Zn amalgam and concentrated \(HCl\)
- \(LiAlH_4\)
- \(N_2H_4\) followed by heating with \(KOH\) in glycol
- \(H_2\) in the presence of \(Pd/BaSO_4\)
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Clemmensen reduction is a chemical reaction used to reduce a carbonyl group (\(C=O\)) in aldehydes or ketones to a methylene group (\(CH_2\)), resulting in an alkane.
Step 2: Detailed Explanation:
1. The reagent used in Clemmensen reduction is Zinc amalgam (\(Zn(Hg)\)) and concentrated Hydrochloric acid (\(HCl\)).
2. This method is particularly useful for reducing ketones that are stable to strong acids.
3. In contrast, the Wolf-Kishner reduction (Option D) uses Hydrazine and base for the same purpose and is used for acid-sensitive compounds.
Step 3: Final Answer:
Clemmensen reduction uses Zn amalgam and concentrated \(HCl\).
Clemmensen reduction is a chemical reaction used to reduce a carbonyl group (\(C=O\)) in aldehydes or ketones to a methylene group (\(CH_2\)), resulting in an alkane.
Step 2: Detailed Explanation:
1. The reagent used in Clemmensen reduction is Zinc amalgam (\(Zn(Hg)\)) and concentrated Hydrochloric acid (\(HCl\)).
2. This method is particularly useful for reducing ketones that are stable to strong acids.
3. In contrast, the Wolf-Kishner reduction (Option D) uses Hydrazine and base for the same purpose and is used for acid-sensitive compounds.
Step 3: Final Answer:
Clemmensen reduction uses Zn amalgam and concentrated \(HCl\).
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