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# How much charge is required for the following reduction:

3.12 How much charge is required for the following reductions:

(iii)$\dpi{100} MnO_{4}^{-}\ to\ Mn^{2+}\ ?$

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The given reaction can be written as:-

$Mn^{+7}\ +\ 5e^- =\ Mn^{+2}$

Thus charge required in above equation $=\ 5F$

$\dpi{100} = 5(96500)$

$= 482500\ C$

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