Which of the following is the strongest acid?

Options

A. `ClO_(3)(OH)`
B. `ClO_(2) (OH)`
C. `SO(OH)_(2)`
D. `SO_(2)(OH)_(2)`

Explanation

`HClO_(4)` is strongest acid
As its conjugate base is most stable
`HClO_(4) rarr H^(+) + ClO_(4)^(-)`