MCQ
The species which does not undergo disproportionation reaction is :
  • A
    $ClO _2^{-}$
  • $ClO _4^{-}$
  • C
    $ClO ^{-}$
  • D
    $ClO _3^{-}$

Answer

Correct option: B.
$ClO _4^{-}$
(B) $ClO _4^{-}$
Sol. $ClO _4^{-} \rightarrow x+\{(-2) \times 4\}=-1 \Rightarrow x=+7$
Chlorine is in its maximum oxidation state, so disproportionation not possible in $ClO _4^{-}$.

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