1.

"Oxoanion" + H_(2)Orarr "oxoacid"+OH^(-) Oxoanion is converted into oxoacid by abstraction of proton from water which is initiated by H-bond formation. The increasing strength of H-bond of the given oxoanion is :

Answer»

`ClO_(4)^(-)ltSO_(4)^(2-)ltPO_(4)^(3-)ltSiO_(4)^(4-)`
`SO_(4)^(2-)ltSO_(4)^(2-)ltPO_(4)^(3-)ltSiO_(4)^(4-)`
`ClO_(4)^(-)ltSO_(4)^(2-)ltSiO_(4)^(4-)ltPO_(4)^(4-)`
`ClO_(4)^(-)ltPO_(4)^(3-)ltSO_(4)^(2-)ltSiO_(4)^(4-)`

Solution :Tendency of `pi`-bond formation is maximum in `ClO_(4)^(-)`, hence, `SiO_(4)^(4-)` will more easily form STRONG H-bond.


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