Alkali metal salts of carboxylic acids also undergo decarboxylation on electrolysis of their aqueous solutions and form hydrocarbons having twice the number of carbon atoms present in the alkyl group of the acid. The reaction is known as

Alkali metal salts of carboxylic acids undergo decarboxylation on electrolysis of their aqueous solution and form hydrocarbons having twice the number of carbon atoms present in the alkyl group of the carbon atoms present in the alkyl group of the acid. The reaction is known as Kolbe electrolysis.