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प्रश्न
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
पर्याय
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Briefly state the importance of Nitrogen.
Name and briefly explain four ways by which pollution of air is caused by humans.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
What are the main components of air?
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
State four different properties of a compound and a mixture.
Nitrogen is used in the food packaging industry because it _____.
______ present in the air is needed for respiration.
