Assertion : HClO_4 is a stronger acid than HC | vedclass

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(B) The Assertion is correct: $HClO_4$ is indeed a stronger acid than $HClO_3$.The Reason is also correct: The oxidation state of $Cl$ in $HClO_4$ is

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If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) The Assertion is correct: $HClO_4$ is indeed a stronger acid than $HClO_3$.The Reason is also correct: The oxidation state of $Cl$ in $HClO_4$ is $+VII$ and in $HClO_3$ is $+V$.However,the Reason is not the correct explanation for the Assertion. The acidity of oxyacids is determined by the number of non-hydroxylated oxygen atoms $(n)$ in the general formula $(HO)_m ZO_n$. For $HClO_4$ $(HOClO_3)$,$n = 3$. For $HClO_3$ $(HOClO_2)$,$n = 2$. As the number of non-hydroxylated oxygen atoms $(n)$ increases,the electron-withdrawing effect on the $Cl$ atom increases,which in turn weakens the $O-H$ bond,facilitating the release of the $H^+$ ion. Thus,the acidity depends on the number of non-hydroxylated oxygen atoms,not directly on the oxidation state of the central atom.

Assertion : $HClO_4$ is a stronger acid than $HClO_3$.
Reason : Oxidation state of $Cl$ in $HClO_4$ is $+VII$ and in $HClO_3$ is $+V$.

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Assertion : $HClO_4$ is a stronger acid than $HClO_3$.Reason : Oxidation state of $Cl$ in $HClO_4$ is $+VII$ and in $HClO_3$ is $+V$.