The species given below that does NOT show

Question:

The species given below that does NOT show disproportionation reaction is :

  1. $\mathrm{BrO}_{4}^{-}$

  2. $\mathrm{BrO}^{-}$

  3. $\mathrm{BrO}_{2}^{-}$

  4. $\mathrm{BrO}_{3}^{-}$

Correct Option: 1

Solution:

In $\mathrm{BrO}_{4}^{\ominus}, \mathrm{Br}$ is in highest oxidation state $(+7)$, So it cannot oxidise further hence it cannot show disproportionation reaction.

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