Which of the following reactions are disproportionation reactions? (A) Cu+ Cu2+ + Cu (B) 4 2 3MnO 4H 2MnO MnO 2H O (C) 2KMnO4 K2MnO4 + MnO2 + O2 (D) 4 2 2MnO 3Mn 2H O 5MnO 4H Choose the correct answer

Question

Which of the following reactions are disproportionation reactions? (A) Cu+ Cu2+ + Cu (B) 4 2 3MnO 4H 2MnO MnO 2H O (C) 2KMnO4 K2MnO4 + MnO2 + O2 (D) 4 2 2MnO 3Mn 2H O 5MnO 4H Choose the correct answer from the options given below:

(A) (A), (B)
(B) (B), (C), (D)
(C) (A), (B), (C)
(D) (A), (D)

Prashant Kotian · Accepted Answer

Correct answer: A. When a particular oxidation state becomes less stable relative to other oxidation state, one lower, one higher, it is said to undergo disproportionation. Cu+  Cu2+ + Cu 4 2 3MnO 4H 2MnO MnO 2H O       

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