Among the oxoacids given below the correct decreasing order of acid strength is (I) `H_3 AsO_4` (II) `H_3 SbO_4` (III) `HNO_3` (IV) `H_3 PO_4`
A. IVgtIIIgtIIgtI
B. IIIgtIVgtIgtIV
C. IIIgtIIgtIVgtI
D. IIIgtIgtIIgtIV

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1 Answers

Correct Answer - B
The decreasing order of acid strength is
`HNO_(3) gt H_(3)PO_(4) gt H_(3)AsO_(4) gt H_(3)SbO_(4)`

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