MHT CET Chemistry question

\mathrm{R-CN + 2H\ \xrightarrow[Dil.\ HCl]{(i)\ SnCl_2}\ RCHO + NH_4Cl}, this reaction is known as [MHTCET 2015]

Answer: (B)

Solution

Reduction of an alkyl or aryl cyanide with SnCl2/HCl to an aldehyde (after hydrolysis of the imine salt) is the Stephen reaction;

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Question ID VK-082594