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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) (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

The correct Answer is:
D
Acidity is directly proportional to oxidation number. As the O. No. of S,P and Cl in `H_(2)SO_(3),H_(3)PO_(3) & HClO_(3)` is +4, +3, & +5 respectively so decreasing order of acidity will be `III gt I gt II `
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