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प्रश्न
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 observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric 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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उत्तर
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (e) Nitrogen |
| 2. A gas used for filling weather observeation balloons. | (d) Helium |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (b) Carbonic acid |
| 5. A gas vital for respiration. | (a) Oxygen |
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संबंधित प्रश्न
Fill in the blank:
_____________ discovered the oxygen gas.
Why can’t we see air?
What do you observe when Carbon dioxide gas is passed through lime water.
Give two uses of the following component present in air:
carbon dioxide
Name two air pollutants which affect our health.
Describe a simple experiment with the help of a diagram to show that Air occupies space
State whether the following statement is true or false.
The pressure exerted by air is called atmospheric pressure.
The composition of air is always exactly the same.
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
Make sentences using the given set of words.
Air, wind, motion, called
