pBlock ElementsII 1 Question 21
21. Which of the following is not oxidised by $\mathrm{O}_{3}$ ?
$(2005,1 \mathrm{M})$
(a) KI
(b) $\mathrm{FeSO}_{4}$
(c) $\mathrm{KMnO}_{4}$
(d) $\mathrm{K}{2} \mathrm{MnO}{4}$
Show Answer
Solution:
- In $\mathrm{KMnO}_{4}, \mathrm{Mn}$ is already in its highest oxidation state (+7), cannot be oxidised by any oxidising agent.
