Q. Which of the following is incorrect for KMnO4 to be used as an oxidising agent?
  • (A) HCl cannot be used because some KMnO4 is consumed in the reaction.
  • (B) Nitric acid is not used for the above purpose because it itself acts as a self oxidising agent and will react with the reducing agent.
  • (C) The equivalent weight of KMnO4 in basic medium is 158.
  • (D) The number of electrons involved in oxidation of KMnO4 in acidic medium is 3.
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✅ Correct Answer: (D) The number of electrons involved in oxidation of KMnO4 in acidic medium is 3.

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