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प्रश्न
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
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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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संबंधित प्रश्न
The most abundant element in the earth’s crust.
An oxide and a carbonate containing oxygen.
Two substances which undergo rapid oxidation.
Fill in the blank :
____________ discovered the oxygen gas.
Fill in the blank:
Manganese dioxide acts as a _________.
Fill in the blank:
Oxygen occupies about ______ of air by volume.
How will you obtain dry oxygen in the laboratory?
State two characteristics of Acidic oxides.
Oxygen is a poor conductor of heat and electricity.
Write the reaction of oxygen with non–metals.
