The reactions of given compound with sodium bicarbonate solution are as follows
As
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.