1.

The correct order for decreasing acidic strength of oxyacids of group 15 is

Answer»

`HNO_(3) gt H_(3)SbO_(4) gt H_(3)AsO_(4) gt H_(3)PO_(4)`
`H_(3)PO_(4) gt H_(3)AsO_(4) gt H_(3)SbO_(4) gt HNO_(3)`
`HNO_(3) gt H_(3)PO_(4) gt H_(3)AsO_(4) gt H_(2)SbO_(4)`
`HNO_(3) gt H_(3)AsO_(4) gt H_(3)PO_(4) gt H_(3)SbO_(4)`

Answer :C


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