Question Detail

CHM 102 Carbonyl Compounds Objective Question
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Question

What is the Clemmensen reduction?
Options
A Reduction of an aldehyde/ketone to alcohol with NaBH₄
B Reduction of a carbonyl to a methylene group (CH₂) using Zn(Hg)/HCl
Correct Answer
C Reduction of a carbonyl to an alkene
D Oxidation of an aldehyde to acid
Correct Answer

Option B is the correct answer.

Detailed Explanation

Clemmensen reduction (amalgamated zinc + concentrated HCl) reduces aldehydes and ketones to alkanes (R₂C=O → R₂CH₂) under acidic conditions.

Hint

Carbonyl to methylene.

Question Info

Course: CHM 102
Topic: Carbonyl Compounds
Type: Objective
Difficulty: Not specified
Question 637 of 1999
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