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Question
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
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Solution
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RELATED QUESTIONS
Give two uses of the following component present in air:
water vapour
Fill in the blank
Although we cannot see air, we can ___it.
What will happen if the amount of water vapour in the air increases.
Match the statements in List I with the correct answer from List II.
| List I | List II |
| 1. The constituent of air which is around 0.02% | A: Nitrogen |
| 2. The constituent of air which is inert or unreactive | B: Oxygen |
| 3. The constituent of air which is non-combustible, but supports combustion. |
C: Sulphur dioxide |
| 4. A pollutant in air responsible for acid rain | D: Carbon dioxide |
| 5. The main rare gas present in air. | E: Argon |
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Mention two advantages of wind energy.
Do sailors need the help of wind to sail?
Make sentences using the given set of words.
Air, wind, motion, called
Explain the following observations very briefly
A firki does not rotate in a closed area.
