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प्रश्न
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
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उत्तर
Oxygen is collected by the downward displacement of water.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
An oxide and a carbonate containing oxygen.
Fill in the blank:
Oxygen occupies about ______ of air by volume.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
The nitric oxide gas reacts with the oxygen and water vapour to form ______ vapour.
Tick (√ ) the most appropriate answer.
Sodium burns in oxygen with a flame which is :
(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?
Write fully balanced equation for the following :
SO2 + H2O →
Write fully balanced equation for the following :
Na2O + H2O →
Give tests for oxygen gas.
Oxygen is a poor conductor of heat and electricity.
