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प्रश्न
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
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उत्तर
The gas evolved as a product of combustion as well as respiration is carbondioxide.
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संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Discuss harmful effects of greenhouse effect.
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 |
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
Describe a simple experiment with the help of a diagram to show that Air has mass
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
Answer in your own words.
What are the various constituents of air? Write their uses.
The capacity of air to hold moisture depends upon the ______ of the air.
State the meaning of the term Air
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.
