JEE Main 2024 Chemistry question
Which of the following reactions are disproportionation reactions? (A) Cu → Cu + Cu (B) 3MnO + 4H → 2MnO + MnO + 2HO (C) 3KMnO → KMnO + MnO + O (D) 2MnO + 3Mn + 2HO → 5MnO + 4H Choose the correct answer from the options given below.
Answer: (C)
Solution
In (A) and (B) one species is simultaneously oxidised and reduced; (D) is comproportionation and in (C) Mn is only reduced.