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Molarity

In alkaline m...

Question

In alkaline medium, $C l O_{2}$ oxidizes $H_{2} O_{2}$ to $O_{2}$ and is itself reduced to ${C l O}_{2}^{-}$ . Number of moles of $H_{2} O_{2}$ oxidized by 1 mole of $C l O_{2}$ is :

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1.5

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0.5

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3.5

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Solution

The correct option is B 0.5
The balanced reaction is as follows:
$H_{2} O_{2} + 2 C l O_{2} \to 2 C l O_{2}^{+} O_{2} + 2 H^{+}$
So, number of moles of $H_{2} O_{2}$ oxidized by 1 mole of $C l O_{2}$ is 0.5.

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