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प्रश्न
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
टिप्पणी लिखिए
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उत्तर
In the laboratory preparation of oxygen from potassium chlor¬ate, manganese dioxide acts as a catalyst i.e. it increase the rate of production of oxygen without getting itself consumed.
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Properties of Oxygen
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