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Arrange the acids (i) H(2)SO(3) (ii) H(3...

Arrange the acids `(i) H_(2)SO_(3) (ii) H_(3)PO_(3) and (iii) HClO_(3)` in the decreasing order of acidity.

A

`(i) gt (iii) gt (ii)`

B

`(i) gt (ii) gt (iii)`

C

`(ii) gt (iii) gt (i)`

D

`(iii) gt (i) gt (ii)`

Text Solution

Verified by Experts

Acidity is directly proportional to oxidation number. As the oxidation number of S, P and Cl in `H_(2)SO_(3), H_(3)PO_(3) and HClO_(3)` is `+4,+3,+5` respectively. So decreasing order of acidity will be `(iii) gt (i) gt (ii)`
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