How does the acid strength of the halogen oxoacids vary? - Vidyadip

Question

How does the acid strength of the halogen oxoacids vary?

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Answer

The acid strength of the halogen oxoacids increases with increase in the oxidation state of the halogen.
$\begin{aligned}
& \stackrel{1+}{ HClO }<\underset{3+}{ HClO _2}<\underset{ HClO _3}{4+} \stackrel{7+}{ HClO _4} \\
& \left( K _{ a }=3.5 \times 10^{-8}\right) \quad\left( K _{ a } \gg 1\right) \\
&
\end{aligned}$

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