Arrange the acids H_2SO_4,H_3PO_4,and HClO_3 | vedclass

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(C) The acidic strength of oxyacids depends on the oxidation state of the central atom and the electronegativity of the central atom.For the given aci

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$III > I > II$

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(C) The acidic strength of oxyacids depends on the oxidation state of the central atom and the electronegativity of the central atom.For the given acids,the $pK_a$ values are:$HClO_3$ $(pK_a \approx -3)$$H_2SO_4$ ($pK_a \approx -3$ for the first dissociation,but generally considered stronger than $H_3PO_4$)$H_3PO_4$ $(pK_a \approx 2.12)$Comparing the acid dissociation constants,the order of acidic strength is $HClO_3 > H_2SO_4 > H_3PO_4$,which corresponds to $III > I > II$.

Arrange the acids $H_2SO_4$,$H_3PO_4$,and $HClO_3$ in the decreasing order of their acidic strength.

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