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KMnO 4 decomposes on heating at 513K to form O 2 along with

1. K 2 MnO 4 & MnO 2
2. K 2 MnO 4 & Mn
3. MnO 2 & K 2 O 2
4. Mn & KO 2

Correct answer: K 2 MnO 4 & MnO 2

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