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KMnO(4) acts as an oxidising agent in al...

`KMnO_(4)` acts as an oxidising agent in alkaline medium when alkaline `KMn_(4)` is treated with KI iodide ion is oxidised to

A

`I_2`

B

`IO^(-)`

C

`IO_3^(-)`

D

`IO_4^(-)`

Text Solution

Verified by Experts

The correct Answer is:
C
`KMnO_4` acts as an oxidising agent in alkaline medium. When alkaline`KMnO_4` is treated with KI, iodide ion is oxidised to `IO_3^(-)`
Reaction :
`2KMnO_4 + H_2O + KI to 2MnO_4 + 2KOH + KIO_3`
`or, I^(-) + 6OH^(-) to IO_3^(-) + 3H_2O + 6e^(-)`.
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