Advertisements
Advertisements
प्रश्न
The constituent of air that supports combustion is _____.
विकल्प
Nitrogen
water vapour
Oxygen
water vapour
Advertisements
उत्तर
The constituent of air that supports combustion is Oxygen.
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Complete and balance the following chemical equation.
CaO + H2O → ____________
Describe a simple experiment to show that l/5th of air is oxygen.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Write the percentage of the gases present in air.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
A weather cock shows the ______ in which the air is moving at that place.
Observe the picture given in Fig. carefully and answer the following questions.
Why is he putting a cover on his nose?
