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Mn^(2+) can be oxidised to MnO4(ɵ) by (S...

`Mn^(2+)` can be oxidised to `MnO_4(ɵ)` by `_______`(SnO_2,PbO_2,BaO_2`).

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`Mn^(2+)` can be oxidised to `MnO_4^(ɵ)` by `PbO_2`.
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