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Which one of the following is reduced by hydrogen peroxide in acid medium

$\begin{array}{1 1}(a)\;\text{Potassium permanganate}\\(b)\;\text{Ferrous sulphate}\\(c)\;\text{Potassium iodide}\\(d)\;\text{Potassium ferrocyanide}\end{array}$

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$H_2O_2$ reduces acidified $KMnO_4$ solution. As a result, the pink colour of $KMnO_4$ is changed
Hence (a) is the correct answer.
answered Jan 30, 2014 by sreemathi.v
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