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प्रश्न
Answer in your own words.
What are the various constituents of air? Write their uses.
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उत्तर
| Constituents of air | Uses |
| 1. Nitrogen | Required in building proteins. Useful in the production of ammonia. Used in airtight packaging of food products. |
| 2. Oxygen | Necessary for respiration and combustion. |
| 3. Carbon dioxide | Used by plants to make their food. Used in fire extinguishers. |
| 4. Argon | Used in electric bulbs. |
| 5. Helium |
Used for obtaining low temperatures. |
| 6. Neon | Used in decorative lights and street lighting. |
| 7. Krypton | Used in fluorescent tubes. |
| 8. Xenon | Used in flash photography. |
संबंधित प्रश्न
How is greenhouse effect produced?
What is wind?
Give two uses of the following component present in air:
oxygen
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
Define rusting?
Give a brief account of the discovery of air and the scientists involved.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
List five activities that are possible due to the presence of air.
Wind does not help in the movement of which of the following?
