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2023 Aldehydes, Ketones and Carboxylic Acids Reduction of Carbonyl Compounds – Clemmensen Reduction Medium Question 12 of 91 in Aldehydes, Ketones and Carboxylic Acids

Identify product (A) in the following reaction:

Identify product (A) in the following reaction:

A -

B -

C -

D -

The answer is B.

Solution

Zn–Hg/conc. HCl reduces a ketone carbonyl to a methylene group (Clemmensen reduction).

Ketones are reduced into hydrocarbons using Zn-Hg/HCl (Clemmenson reduction). $>C=O+Zn-Hg/HCl\rightarrow>CH_2$

Concept Zn-Hg/HCl reduces C=O to CH2

Aldehydes, Ketones and Carboxylic Acids in past papers

91 questions from this chapter have appeared across 27 exam years.