Exaplain Cannozzaro reaction with an example.

Explanation

Aldehydes which do not have an `alpha` hydrogen atom, undergo self-oxidation and reduetion reaction on heating with conc alkali.
In this reaction one molecules of the aldehyde is reduced to alcohol while another is oxidised to carboxylic acid salt.
Example-1 `underset("Formaldehyde")(HCHO+HCHO)+KOH overset(Delta)to underset("Methyl alcohol")(CH_(3)OH) + underset("Potassium formate")(HCOOK)`
Example-2