The one which is a conjugate acid-base pair

H₂O, O^2-

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H₂SO₄, SO₄^2-

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HCO₃^-, CO₃^2-

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Solution

The correct option is C
HCO₃^-, CO₃^2-

Acid - base pair which differ only by a proton is called conjugate acid-base pair

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Similar questions

H C O_{3}^{-} + H_{2} O \to C O_{3}^{2 -} + H_{3} O^{+}

H C O_{3}^{-}

H C O_{3}^{-}

H C O_{3}^{-} + H_{2} O ⇌ H_{3} O^{+} + C O_{3}^{2 -}

H C O_{3}^{-} + H_{2} O \to C O_{3}^{2 -} + H_{3} O^{+}

H C O_{3}^{-}

H C O_{3}^{-}

H C O_{3}^{-} + H_{2} O \to C O_{3}^{2 -} + H_{3} O^{+}

(H C O_{3})^{-}

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