1.

Which of the following order of acidic strengths is incorrect ?

Answer»

`H_(3)PO_(4) LT HNO_(3)`
`H_(2)SeO_(3) lt H_(2)SO_(3)`
`H_(3)PO_(3) lt HNO_(2)`
`H_(2)SO_(3) lt H_(2)SO_(4)`

SOLUTION :Contrary to what we MIGHT expect, `H_(3)PO_(3)` is a stronger acid than `HNO_(2)`.


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