Question

In the preparation of alkanes, a concentrated aqueous solution of sodium or potassium salts of saturated carboxylic acid are subjected to :

• A. Hydrolysis
• B. Oxidation
• C. Hydrogenation
• D. Electrolysis

Answer 1

The correct option is D Electrolysis

Salts of carboxylic acids are electrolysed to form alkyl radical which combines to form alkane. $C{O}_2$ is released at anode during the process. This method is called Kolbe's electrolysis method.

At anode: oxidation takes place