1.

Conjugate base of H_(2)PO_(4)^(-) is

Answer»

`HPO_(4)^(-)`
`HPO_(4)^(2-)`
`H_(3)PO_(4)`
`PO_(4)^(3-)`

Solution :`H_(2)PO_(4)^(-) underset(-H^(+))RARR HPO_(4)^(2-)`


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