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2.68xx10^(-3) moles of solution containi...

`2.68xx10^(-3)` moles of solution containing anion `A^(n+)` require `1.61xx10^(-3)` moles of `MnO_(4)^(-)` for oxidation of `A^(n+)` to `AO_(3)^(-)` in acidic medium. What is the value of `n`?

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The correct Answer is:
2
Equivalents of `A^(n+) =` Eqs of `MnO_(4)^(-)`
`2.68 xx 10^(-3) xx (5-n) = 1.61 xx 10^(-3) xx 5, :. N = 2`
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