The hydrogen carbonate ion

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

The hydrogen carbonate ion,

HCO_3^-,

is amphiprotic. Which option lists its conjugate acid and its conjugate base, respectively? (a)

H_2CO_3\ ;\ HCO_3^{-}

(b)

H_2CO_3\ ;\ CO_3^{2-}

(c)

CO_3^{2-}\ ;\ H_2CO_3

(d)

H_2CO_3\ ;\ HCO_3^{2-}