Question
Write Clemmenson:

Answer

Clemmenson Reduction : This reduction of aldehydes and ketones to the corresponding hydrocarbons with $Zn / Hg$ and concentrated HCl is called Clemmenson reduction. For example,
$CH _3 COCH _3+4[ H ] \frac{ Zn / Hg +\text { conc. } HCl }{\Delta} \rightarrow CH _3 CH _2 CH _3+ H _2 O$
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