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MolSynapse / Question bank / Aldehydes, Ketones and Carboxylic Acids / Oxidation and reduction of carbonyls (Clemmensen, Wolff-Kishner, Tollens, Fehling)

NEET levelSingle correct optionDifficulty 1 of 3co139

Conversion of $C = O$ into $CH X_{2}$ by Clemmensen reduction uses

A $NaBH X_{4}$ in methanol
B $Zn - Hg$ and conc. $HCl$
C $LiAlH X_{4}$ in dry ether
D $N X_{2} H X_{4}$ and $KOH$ in ethylene glycol

Answer: B

Clemmensen reduction uses zinc amalgam and concentrated hydrochloric acid. The hydrazine/KOH combination is the Wolff-Kishner reduction, a basic-medium method.

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