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Question

Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

The reagents used in Clemmensen reduction of aldehyde is/are

A

lithium aluminium hydride

B

hydrazone and \ceNaOH\ce{NaOH}

C

zinc amalgam and conc. \ceHCl\ce{HCl}

D

anhydrous aluminium chloride.

Answer

zinc amalgam and conc. \ceHCl\ce{HCl}

Explanation

Solution

Clemmensen reduction : {\underset{\text{Aldehyde}}{ {RCHO }}+4[H]>[ZnHg,HCl]+ 4 [H] ->[ { Zn - Hg , HCl}] \underset{\text{Alkane}}{ {R- CH_3+ H_2O }} }