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प्रश्न
Nitrogen is _______ than air.
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उत्तर
Nitrogen is lighter than air.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
What are the two ways in which nitrogen fixation occurs?
Complete and balance the following chemical equation.
CaO + H2O → ____________
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.
List uses of oxygen.
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
What is the composition of air?
The main component of air is oxygen.
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
