Question

Convert Cyanide to Aldehyde and Ketone.

Answer 1

DIBAl - H Reagent is used to convert cyanide to aldehyde or ketone.
Example:

$C{H}_3-C\equiv N\underset{2.H_{2}O}{\overset{1.DIBAl-H}{\to }}R-CHO$

In this reaction, DIBAl-H act as a reducing agent.