Distinguish between the role of iodine and iodide ions in this experiment.

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During the disproportionation of iodine to iodide and iodate ions, the ratio of iodate and iodide ions formed in alkaline medium is:

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I_{2} \to I O_{3}^{-} + I^{-}

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Consider the disproportionation of Iodine to iodide and iodate ions. Using Oxidation method calculate the ratio of iodate and iodide ions formed in alkaline medium :

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Permanganate

(V I I)

ion,

M n O_{4}^{-}

in basic solution oxidises iodide ion,

I^{-}

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(I_{2})

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(I V)

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