1.

Dissociation of H_(3)PO_(4) takes place in following steps

Answer»

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Solution : `H_(3)PO_(4) OVERSET("I step")hArr H^(+) + H_(2)PO_(4)^(-)`
`H_(2)PO_(4)^(-) overset("II step")hArr + HPO_(4)^(--)`
`HPO_(4)^(--) overset("III step")hArr H^(+) + PO_(4)^(---)`


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