The correct order of acid strength of the oxoacids of chlorine is

A $HClO X_{4} < HClO X_{3} < HClO X_{2} < HOCl$
B $HOCl < HClO X_{2} < HClO X_{3} < HClO X_{4}$
C $HClO X_{2} < HOCl < HClO X_{4} < HClO X_{3}$
D $HOCl < HClO X_{3} < HClO X_{2} < HClO X_{4}$

Answer: B

Acidity rises with the number of terminal oxygen atoms and the oxidation state of Cl. They stabilise the anion by delocalising and withdrawing charge, so acid strength follows HOCl < HClO2 < HClO3 < HClO4.

Practice p-Block Elements: Groups 17 and 18 More on Halogen compounds: HX, oxoacids, bleaching powder

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The correct order of acid strength of the oxoacids of chlorine is

Answer: B

More questions on Halogen compounds: HX, oxoacids, bleaching powder