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Help me please, Which is the strongest acid in the following:

Which is the strongest acid in the following:

  • Option 1)

    HClO_{3}

  • Option 2)

    HClO_{4}

  • Option 3)

    H_{2}SO_{3}

  • Option 4)

    H_{2}SO_{4}

 
Answers (1)
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As learnt in

Acidic strength of oxyacids -

HClO4>HCIO3>HCIO2>HCIO

- wherein

Acidic strenght \propto electronegativity of central atom 

 

acidity \propto oxidation state of central atom and greater the delocalization of negative charge on the union, higher will be the acidity as greater delocalization makes the conjugate base more stable.


Option 1)

HClO_{3}

This solution is incorrect

Option 2)

HClO_{4}

This solution is correct

Option 3)

H_{2}SO_{3}

This solution is incorrect

Option 4)

H_{2}SO_{4}

This solution is incorrect

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