Among $\mathrm{ClO^-}$, $\mathrm{ClO_2^-}$, $\mathrm{ClO_3^-}$ and $\mathrm{ClO_4^-}$, which does not show disproportionation?
- A$\mathrm{ClO^-}$
- B$\mathrm{ClO_2^-}$
- C$\mathrm{ClO_4^-}$
- D$\mathrm{ClO_3^-}$
✓ Correct answer: C
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