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प्रश्न
Name the following:
The active component of air which supports combustion and is used up in burning
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उत्तर
Oxygen
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.
Name and briefly explain four ways by which pollution of air is caused by humans.
State the full form of LPG and CNG? How are the two different in their composition?
State the utility of oxygen for respiration in living organisms
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
_____ gas turns lime water milky.
Explain carbon dioxide and its uses.
A ______ gas that is used to remove carbon impurities from the steel.
The solid form of CO2 is called dry ice which undergoes condensation.
Explain the following observations very briefly
Breathing through mouth may harm you.
