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Question
Explain why the stability of oxoacids of chlorine increases in the order given below:
\[\ce{HClO < HClO2 < HClO3 < HClO4}\]
Solution
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \[\ce{ClO^{-}}\] to \[\ce{ClO^{-}_{4}}\] ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below:
\[\ce{ClO < ClO2 < ClO3 < ClO5}\]
Thus due to increase instability of conjugate base, acidic strength of corresponding acid increases in the following order
\[\ce{HClO < HClO2 < HClO5 < HClO4}\]
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RELATED QUESTIONS
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