Which of the following reactions are disproportionation reactions? (A) {\Cu}^{+} \rightarrow {\Cu}^{2+}+ {\Cu} (B) 3 {\MnO}_4^{2-}+4 {\H}^{+} \rightarrow 2 {\MnO}_4^{-}+ {\MnO}_2+2 {\H}_2 {\O} (C) 2 {\KMnO}_4 \rightarrow {\K}_2 {\MnO}_4+ {\MnO}_2+ {\O}_2 (D) 2 {\MnO}_4^{-}+3 {\Mn}^{2+}+2 {\H}_2 {\O} \rightarrow 5 {\MnO}_2+4 {\H}^{+} Choose the correct answer from the options given below: [1-Feb-2024 Shift 1]

Redox Reactions

Section: Chemistry

Question : 18 of 70

Marks: +1, -0

Which of the following reactions are disproportionation reactions?
(A) Cu+⟶Cu2++Cu
(B) 3MnO42−+4H+⟶2MnO4−+MnO2+2H2O
(C) 2KMnO4⟶K2MnO4+MnO2+O2
(D) 2MnO4−+3Mn2++2H2O⟶5MnO2+4H+
Choose the correct answer from the options given below:

[1-Feb-2024 Shift 1]

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

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