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प्रश्न
______ is the active component of air.
उत्तर
Oxygen is the active component of air.
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संबंधित प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
Name the following:
The type of bacteria which directly absorb nitrogen from the air and converted soluble nitrates in the soil.
State four different properties of a compound and a mixture.
What is the percentage of oxygen in air?
Explain why during an incident of fire, one is advised to wrap a woollen blanket over a burning object.
Nitrogen is used in the food packaging industry because it _____.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Tri oxygen molecule is known as ______.
