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The conjugate base of H2PO4^- is

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The conjugate base of H2PO-4  is

(a)  PO3-4

(b)  HPO-4 

(c)  H3PO4

(d)  HPO2-4

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1 Answer

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Best answer

Correct option  (d) HPO2-4

Explanation:

conjugate base of  H2PO4 is  HPO2-4

 H2PO-4 + H2O ⇋ H2PO2-4  + H3O+

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