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Question: The conjugate base of H2PO4– is...

The conjugate base of H2PO4– is

A

PO43–

B

P2O5

C

H3PO4

D

HPO42–

Answer

HPO42–

Explanation

Solution

Congugate base is formed by the removal of H’ from acid

H2PO4−→HPO42−+H+H_{2}PO_{4}^{-} \rightarrow HPO_{4}^{2 -} + H^{+}