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Question

KMnO4 acts as on oxidising agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidised to :

A
I2
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B
IO
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C
IO3
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D
IO4
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Solution

The correct option is C IO3
2KMnO4+H2O+KI2MnO2+2KOH+KIO3

I+6OHIO3+3H2O+6e

When alkaline KMnO4 is treated with KI, I is oxidised to IO3.


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