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Introduction to Oxidation and Reduction

How many mole...

Question

How many mole of electrons are involved in the reduction of one mole of $M n O_{4}^{-}$ ion in alkaline medium to $M n O_{4}^{- 2}$ ?

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Solution

The correct option is B
1

$+ 7 M n O_{4}^{-} + e^{-} \to + 6 M n O_{4}^{2 -}$

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