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The oxidation number of Mn in the product of alkaline oxidative fusion of `MnO_2` is

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The oxidation number of Mn in the product of alkaline oxidative fusion of `MnO_2` is
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Reaction involved in the oxidative fusion of `MnO_(2)` is
`2MnO_(2)+$KOH+O_(2) rarr 2K_(2)MnO_(4) + 2H_(2)O`
The oxidation number of Mn in `K_(2)MnO_(4)` is `+6`.
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