For the reaction H+(aq) + HCO3-(aq) ↔ H2CO3(aq), if the reaction is at equilibrium, which conditions must be maintained?
A. [H2CO3] > [H+][HCO3-]
B. [H2CO3] < [H+][HCO3-]
C. [H2CO3] = [H+][HCO3-]
D. none of the above
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At equilibrium, we know that value of equilibrium constant (K) must be one, which is given by,



Hence the correct option is OPTION (C) [H2CO3] = [H+][HCO3-]
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