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प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
Every nine parts of water by weight contains eight parts by weight of _________.
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उत्तर
Every nine parts of water by weight contains eight parts by weight of oxygen.
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संबंधित प्रश्न
Why is potassium chlorate not used for laboratory preparation of oxygen ?
The natural way of adding oxygen to air which involves green plants is called
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
Fill in the blank:
Oxygen is slightly _________ than air.
Why is potassium chlorate is not used for laboratory preparation of oxygen ?
State the use of manganese dioxide in the laboratory prepa-ration of oxygen from potassium chlorate.
Complete and balance the following equation
S + O2 →
State any four physical properties of oxygen gas.
Give tests for oxygen gas.
Give reason for the following:
Oxidation of sulphur results in a product which turns moist blue litmus red.
