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The product of oxidation of I^(-) with M...

The product of oxidation of `I^(-)` with `MnO_(4)^(-)` in alkaline medium is:

A

`IO_(3)^(-)`

B

`I_(2)`

C

`IO^(-)`

D

`IO_(4)^(-)`.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) In alkaline medium, `KMnO_(4)` is reduced to `MnO_(2)` and the oxygen evolved oxidises `KI" to "KIO_(3)(IO_(3)^(-))`.
`2KMnO_(4)+H_(2)Orarroverset((OH^(-)))rarr2MnO_(2)+2KOH+3(O)KI+3(O)rarrKIO_(3)`
`2KMnO_(4)+KI+H_(2)Orarr2KOH+2MnO_(2)+KIO_(3)(IO_(3)^(-))`
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