The remaining product will be CH3CH(CH3)COCH3.
What is decarboxylation?
Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide. Usually, decarboxylation refers to a reaction of carboxylic acids, removing a carbon atom from a carbon chain.
On heating Carboxylic acid, it leaves the effervescence of CO2 gass and the alkyl part is left behind