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Haloacids

Which of the ...

Question

Which of the following is reduced by $H_{2} O_{2}$ in acid medium?

K M n O_{4}

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K I

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F e S O_{4}

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K_{4} F e (C N)_{6}

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Solution

The correct option is A $K M n O_{4}$
Since $K M n O_{4}$ is a very strong oxidising agent it gets reduced the easiest.
$2 K M n O_{4} + 3 H_{2} S O_{4} + 5 H_{2} O_{2} \to K_{2} S O_{4} + 2 M n S O_{4} + 8 H_{2} O + 5 O_{2}$

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