Q 1119367219.     `2.68 × 10^(-3)` moles of a solution containing an ion `A^(n+)` require `1.61 × 10^(-3)` moles of `MnO_4^−` for the oxidation of `A^(n+)` to `AO_3^−` in acidic medium. What is the value of n?

JEE 1984
A

`4`

B

`5`

C

`2`

D

`1`

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