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प्रश्न
Fill in the blank:
Rusting is a chemical reaction which involves _____ oxidation.
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उत्तर
Rusting is a chemical reaction which involves slow oxidation.
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संबंधित प्रश्न
Give two uses of the following component present in air:
oxygen
Mention five causes of air pollution.
Fill in the blank
Polluted air is harmful to ____.
Tick (√) the correct alternative from the choice given for the following statement.
Air consists of
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
Describe a simple experiment with the help of a diagram to show that Air has mass
The capacity of air to hold moisture depends upon the ______ of the air.
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 |
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
List five activities that are possible due to the presence of air.
