Potassium permanganate → potassium manganate + A + oxygen. What is A in the given reaction?
A
Manganese
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B
Manganese dioxide
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C
Manganese trioxide
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D
Manganese tetraoxide
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Solution
The correct option is A Manganese dioxide The compound A in the given reaction is Manganese dioxide. It is obtained by heating of potassium permanganate to form oxygen. 2KMnO4→K2MnO4+MnO2+O2