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प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
What is the role of manganese dioxide in the preparation of oxygen?
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
What happens when a glowing splinter is introduced in a jar containing oxygen ?
How is oxygen naturally renewed in air ?
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
How will you obtain dry oxygen in the laboratory?
(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
(b) What is the function of manganese dioxide?
(c) Write fully balanced equation for the liberation of oxygen from hydrogen peroxide.
(d) Why is the above method preferred to any other method?
State any four physical properties of oxygen gas.
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
