pBlock ElementsII - Result Question 21

####21. Which of the following is not oxidised by O3 ? (2005,1M)

(a) KI

(b) FeSO4

(c) KMnO4

(d) K2MnO4

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Solution:

  1. In KMnO4,Mn is already in its highest oxidation state (+7), cannot be oxidised by any oxidising agent.


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