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Question
How is air useful to scooters and cars.?
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Solution
Air filled tyres of cars move smoothly on road as there is less friction.
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RELATED QUESTIONS
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. |
(a) Oxygen |
| 2. A gas used for filling weather observation balloons. | (b) carbon acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphur acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
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State what do you understand by the term ‘air’. Explain its importance to mankind.
Give a brief account of the discovery of air and the scientists involved.
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
What is the importance of air in transmission of sound?
Name the important scientists and their studies which led to the discovery of the components of air.
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Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
The layer of air around the earth is known as ______.
