The conjugate base of mono hydrogen phosphate ion is:

H_{2} P O_{4}^{-}

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H_{3} P O_{4}

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H_{2} P O_{4}^{2 -}

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P O_{4}^{3 -}

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Solution

The correct option is C $P O_{4}^{3 -}$
Mono hydrogen phosphate ion is $H P O_{4}^{2 -}$ .

$H P O_{4}^{2 -} \to H^{+} + P O_{4}^{3 -}$

The conjugate base is $P O_{4}^{3 -}$

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Similar questions

H_{2} P O_{4}^{-}

H_{2} P O_{4}^{-}

H_{3} P O_{4}, H_{3} P O_{4} ⇋ H_{2} P O_{4}^{-} + H^{+} (K_{1})

H_{2} P O_{4}^{-} ⇋ H P O_{4}^{2 -} + H^{+} (K_{2})

H P O_{4}^{2 -} ⇋ P O_{4}^{3 -} + H^{+} (K_{3})

H_{3} P O_{4}

H P O_{4}^{2 -}

H_{2} P O_{4}^{-} + H_{2} O (l) = H_{3} O^{+} (l) + H P O_{4}^{2 -} (l)

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