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Reduction of the metal centre in aqueous permanganate ion involvesA. 3 electrons in neutral mediumB. 5 electrons in neutral mediumC. 3 electrons in weakly alkaline mediumD. 5 electrons in acidic medium |
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Answer» Correct Answer - A,C,D In acidic medium `MnO_4^(-) +8H^(+)+5e^(-)toMn^(2+)+4H_2O` (v.f.=5) In neutral / faintly alkaline medium `MnO_4^(-) +2H_2O+3e^(-)toMnO_(2)+4OH^-` (v.f.=3) In strongly alkaline medium `MnO_4^(-) +e^(-)toMnO_(4)^(2-)` (v.f.=1) |
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