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  4. Which of the following oxo acids of chlorine is the best oxidizing agent?

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Q. Which of the following oxo acids of chlorine is the best oxidizing agent?

NTA AbhyasNTA Abhyas 2020The p-Block Elements - Part2

Solution:

As the oxidation state of halogen atom increases, the halogen-oxygen bond becomes more covalent. As a result, thermal stability of the acid increases and hence, oxidizing power of oxo acid decreases. In other words, the more oxidation state of the halogen, the lesser is the oxidizing power of its oxo acids. Thus, the oxidizing power oxo acids is in the order
$HClO > HClO _{2}> HClO _{3}> HClO _{4} $
Hence, $HClO$ is the best oxidizing agent.