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  • The one with maximum oxidising power is:Option: 1 Hypochlorous acidOption: 2 Chlorous acid<

The one with maximum oxidising power is:

Option: 1

Hypochlorous acid


Option: 2

Chlorous acid


Option: 3

Chloric acid


Option: 4

Perchloric acid

 


Answers (1)

best_answer

The activity of oxyacids of chlorine as oxidizing agents is related inversely to the number of Oxygen atoms in the molecule. Since \mathrm{HOCl} hypochlorous acid contains only 1-\mathrm{OH} group, it is strongest oxidizing oxyacids of chlorine.

The oxiding power of \mathrm{HClO}_{4}, \mathrm{HClO}_{3}, \mathrm{HClO}_{2}, \mathrm{HClO} are in the order:

\mathrm{HClO}>\mathrm{HClO}_{2}>\mathrm{HClO}_{3}>\mathrm{HClO}_{4} because the oxidising states of chlorine in\mathrm{HClO}_{4}, \mathrm{HClO}_{3},\mathrm{HClO}_{2}, \mathrm{HClO} are 7,5,3,1 respectively so \mathrm{HClO} with lowest oxidation state of chlorine have greatest tendency to get oxidised and increase its oxidation state.

Posted by

Rakesh

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