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Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

The correct order of acidity is

A

HClO<HClO2<HClO3<HClO4HClO < HClO _{2}< HClO _{3}< HClO _{4}

B

HClO4<HClO3<HClO2<HClOHClO _{4}< HClO _{3}< HClO _{2}< HClO

C

HClO<HClO4<HClO3<HClO2HClO < HClO _{4}< HClO _{3}< HClO _{2}

D

HClO4<HClO2<HClO3<HClOHClO _{4}< HClO _{2}< HClO _{3}< HClO

Answer

HClO<HClO2<HClO3<HClO4HClO < HClO _{2}< HClO _{3}< HClO _{4}

Explanation

Solution

As the oxidation number of ClCl-atbm increases from HClOHClO to HClO4HClO _{4} (ie, +1+1 to +7+7 ), the possibility of getting HH atom as H+H^{+}ion by the rupture of O−HO-H bond increases. Hence, the correct order of acidity is HClO+1<HClO2+3<HClO3+5<HClO4+7H \overset{+1}{ ClO }< H \overset{+3}{ Cl O _{2}}< H \overset{+5}{ Cl O _{3}}< H \overset{+7}{ Cl O _{4}}