Advertisements
Advertisements
प्रश्न
Give a brief account of the discovery of air and the scientists involved.
Advertisements
उत्तर
- John Mayow (1674) proved air has two components – active and inactive components.
- Lavoisier (1789) named the active component as oxygen and inactive component as nitrogen
- Other scientists (1800's) discovered noble gases, \[\ce{CO2}\], water vapours.
संबंधित प्रश्न
Define the following:
Respiration
How is air useful to scooters and cars.?
State four steps to be taken to control air pollution.
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
Describe a simple experiment with the help of a diagram to show that Air has mass
Why is it said that-
Air is a homogeneous mixture of various gases.
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
The layer of air around the earth is known as ______.
______ is important for all living creatures.
