Advertisements
Advertisements
Question
Give two uses of the following component present in air:
carbon dioxide
Advertisements
Solution
Carbon dioxide: Carbon dioxide is used by plants to prepare their food by photosynthesis. Dry ice (solid carbon - dioxide) is used as a refrigerant. Carbon dioxide is used to prepare fizzy drinks like soda water.
APPEARS IN
RELATED QUESTIONS
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 |
What is greenhouse effect?
What is wind?
Name the processes which maintain the balance between oxygen and carbon dioxide in the air. How is it done?
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.
Rust is
Describe a simple experiment with the help of a diagram to show that Air is highly compressible
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
Draw a neat labelled diagram for the following experiment.
To demonstrate the burning of sulphur in a jar of oxygen.
What is global warming?
