KMnO4 decomposes on heating at 513 K to form O2 along with
- K2MnO4 & Mn
- MnO2 & K2O2
- K2MnO4 & MnO2
- Mn & KO2
Answer
(3) K2MnO4 & MnO2
Solution
2KMnO4 513 K K2MnO4 + MnO2 + O2
∵ on heating, Mn(+7) is reduced to Mn(+6) in manganate and Mn(+4) in MnO2, while oxide oxygen is oxidised to O2
Answer: (3)