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Manganese ions (Mn^(2+)) can be oxidised...

Manganese ions `(Mn^(2+))` can be oxidised by Persulphate ions `S_(2)O_(8)^(2-)` according to the following half-equations,
`S_(2)O_(8)^(2-)+2e^(-) to 2SO_(4)^(2-)`
`Mn^(2+)+4H_(2)O to MnO_(4)^(-)+4H_(2)O to MnO_(4)^(-)+8H^(+)+5e^(-)`
How many moles of `S_(2)O_(8)^(2-)` are required to oxidise 1mole of `Mn^(2+)`?

A

`2.5`

B

`2.0`

C

`11.0`

D

`0.4`

Text Solution

Verified by Experts

The correct Answer is:
A
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