Redox Reactions - Result Question 12
####12. Which of the following reactions are disproportionation reaction?
(a) $2 Cu^{+} \to Cu^{2+}+Cu$
[2019]
(b) $3 MnO_4^{2-}+4 H^{+} \to 2 MnO_4^{-}+MnO_2+2 H_2 O$
(c) $2 KMnO_4 \xrightarrow{\Delta} K_2 MnO_4+MnO_2+O_2$
(d) $2 MnO_4^{-}+3 Mn^{2+}+2 H_2 O \xrightarrow{\Delta} 5 MnO_2+4 H^{+}$
Select the correct option from the following:
(a) (a) and (b) only
(b) (a), (b) and (c)
(c) (a), (c) and (d)
(d) (a) and (d) only
Show Answer
Solution:
- (a) In a disproportionation reaction, one species undergoes both oxidation and reduction.
