Question

what is cannizaro reaction​

Answer 1

The Cannizzaro reaction, named after its discoverer Stanislao Cannizzaro, is a chemical reaction that involves the base-induced disproportionation of two molecules of a non-enolizable aldehyde to give a primary alcohol and a carboxylic acid.

Answer 2

$\huge\textcolor{orange}{\texttt{Answer :-}}$

Aldehydes which do not contain any $\alpha-$atom(e.g. benzaldehyde, formaldehyde) undergo self oxidation and reduction reaction on treatment with conc. solution of caustic alkali.

In this reaction, one molecule is oxidised to acid while another molecule is reduced to alcohol. This reaction reaction is called Cannizzaro's reaction.

Example :

$HCHO + HCHO ----) CH_3OH + HCOO^-Na^+$

NOTE : This reaction takes place under the presence of 50% NaOH.