Which one of the following reaction of carboxylic acid is reversible?

Explanation

Among the options given, the only reversible reaction involving carboxylic acids is A) Esterification, where carboxylic acids and alcohols can interconvert to form esters and water.The other reactions involve the conversion of carboxylic acids into different compounds but do not necessarily revert back to the original carboxylic acid. Esterification is a reversible reaction involving a carboxylic acid and an alcohol, often in the presence of an acid catalyst.In this reaction, an ester and water are formed.The general reaction equation for esterification is: Carboxylic Acid + Alcohol ⇌ Ester + WaterThe reaction can proceed in both directions, forming ester from carboxylic acid and alcohol, as well as converting ester back to carboxylic acid and alcohol under suitable conditions.The equilibrium between reactants and products is established, making esterification a reversible process.