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Question
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 |
Match the Columns
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Solution
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (e) Nitrogen |
| 2. A gas used for filling weather observation balloons. | (d) Helium |
| 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. | (b) carbon acid |
| 5. A gas vital for respiration. | (a) Oxygen |
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