JEE PYQ: Redox Reactions Question 16
Question 16 - 2019 (12 Apr Shift 1)
An example of a disproportionation reaction is:
(1). ($2\text{MnO}_4^- + 10\text{I}^- + 16\text{H}^+ \rightarrow 2\text{Mn}^{2+} + 5\text{I}_2 + 8\text{H}_2\text{O}$)
(2). ($2\text{NaBr} + \text{Cl}_2 \rightarrow 2\text{NaCl} + \text{Br}_2$)
(3). ($2\text{KMnO}_4 \rightarrow \text{K}_2\text{MnO}_4 + \text{MnO}_2 + \text{O}_2$)
(4). ($2\text{CuBr} \rightarrow \text{CuBr}_2 + \text{Cu}$)
Show Answer
Answer: (4)
Solution
Cu⁺ undergoes both oxidation (→ Cu²⁺) and reduction (→ Cu⁰) — disproportionation.
BETA
