Advertisements
Advertisements
प्रश्न
Name the important scientists and their studies which led to the discovery of the components of air.
Advertisements
उत्तर
Discovery of air:
- John Mayow (1674) proved air has two components – active and inactive components.
- Lavoisier (1789) named active component as oxygen and inactive component as nitrogen
- Other scientists (1800’s) discovered noble gases, C02, water vapours.
APPEARS IN
संबंधित प्रश्न
Discuss harmful effects of greenhouse effect.
Write the chemical name of Lime water
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
Tick (√) the correct alternative from the choice given for the following statement.
Photosynthesis is a process in which plants
Describe a simple experiment with the help of a diagram to show that Air is highly compressible
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
The composition of air is always exactly the same.
The layer of air around the earth is known as ______.
Air has no ______ & ______.
