Which is the correct formula for the hydrogen carbonate ion?

CHEMISTRY · Single correct · CBSE · Chemistry · Atoms and Molecules · Atoms and Molecules

Problem

Which is the correct formula for the hydrogen carbonate ion? (1) HCO3−\text{HCO}_3^- (2) HCO2−\text{HCO}_2^- (3) HCO32−\text{HCO}_3^{2-} (4) HCO4−\text{HCO}_4^-

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