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KMnO4+H2SO4+H2O2 -->MnSO4+K2SO4+H2O+O2?

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the solution of KMnO4+H2SO4 was violet,,, but when H2O2 was added, it turned colorless. why???

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  1. The manganate(VII) ion is violet. It oxidises hydrogen peroxide to water and oxygen, but is reduced to the colourless Mn2+ ion in turn. Because the manganate(VII) is removed, the purple colour disappears.

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