Which method reduces a ketone to a methylene group?
Clemmensen reduction (Zn(Hg), HCl) converts the carbonyl group of ketones to a methylene group (CH₂), unlike other methods that produce alcohols.
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Physical Properties and Nucleophilic Addition Reactions