The substance used as catalyst in the preparation of oxygen is
a) manganese dioxide b) potassium chloratec) potassium chloride d) magnesium oxide
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The answer is (a) manganese dioxide.
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The substance used as catalyst in the preparation of oxygen is manganese dioxide.
It is written as MnO2.
It forms a catalyst during the preparation of oxygen by speeding up the rate of reaction.
Thus the correct answer to the question asked by you is ( a ) Manganese Dioxide.
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