Aldehydes, Ketones and Carboxylic Acids Part 1

The reactions of given compound with sodium bicarbonate solution are as followsAs H2CO3 is weak acid it dissociate to liberate CO2 gas and H2O.Equilibrium favours forward direction and CO2 is liberated. In the above two reactions, H2CO3 is comparatively weak acid.Equilibrium favours backward direction and CO2 is not liberated. Thus, only B and C will liberate carbon dioxide with sodium bicarbonate solution.