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प्रश्न
Fill in the blank:
Oxygen occupies about ______ of air by volume.
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उत्तर
Oxygen occupies about 1/5 th of air by volume.
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संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
Taking hydrogen peroxide, how would you prepare oxygen in the laboratory ?
How will you identify oxygen in the laboratory ?
Complete and balance the following equation
\[\ce{N2 + O2 ->[3000°C]}\]
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.
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
Tick (√ ) the most appropriate answer.
Sodium burns in oxygen with a flame which is :
Write fully balanced equation for the following :
SO2 + H2O →
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
Oxygen is a poor conductor of heat and electricity.
