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प्रश्न
Two substances from which oxygen can be obtained at a large scale.
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उत्तर
Air, water.
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संबंधित प्रश्न
How is oxygen naturally renewed in air ?
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
Write ‘True’ or ‘False’ in front of following statement.
Liquid oxygen is used for burning fuel in spaceships.
(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?
Describe what you will observe and write fully balanced equation when the following is introduced in a jar of oxygen.
Burning magnesium
Write fully balanced equation for the following :
SO2 + H2O →
Give reasons for the following:
patients suffering from lung problems are kept in an oxygen tent.
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
Oxygen is a poor conductor of heat and electricity.
Write about the combustible property of Oxygen.
