Question
Which of the following pair will be formed by the decomposition of KMnO4?
Options :
KMnO4,MnO2
K2MnO4, MnO2
K2MnO4, H2O
MnO2, H2O
Answer :
K2MnO4, MnO2
Solution :
KMnO4 decomposes upon heating at 513 K and forms K2MnO4 and MnO2.
2KMnO4 → K2MnO4 + O2 + MnO2
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