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  • Reduction potentials of some ions are given below. Arrange them in decreasing order of oxidising power.

Reduction potentials of some ions are given below. Arrange them in decreasing order of oxidising power.

Ion

Reduction potential E^{\ominus }/V

ClO_{4}^{-}

E^{\ominus }=1.19V

IO_{4}^{-}

E^{\ominus }=1.65V

BrO_{4}^{-}

E^{\ominus }=1.74V

(i) ClO_{4}^{-} > IO_{4}^{-} > BrO_{4}^{-}

(ii) IO_{4}^{-} > BrO_{4}^{-}>ClO_{4}^{-}

(iii) BrO_{4}^{-} > IO_{4}^{-} >ClO_{4}^{-}

(iv) BrO_{4}^{-} > ClO_{4}^{-} >IO_{4}^{-}

Answers (1)

The answer is the option (iii).A higher reduction potential means that there is greater tendency to get reduced. Therefore, the order of oxidizing power is as follows

BrO_{4}^{-} > IO_{4}^{-} >ClO_{4}^{-}

Posted by

infoexpert23

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