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प्रश्न
Fill in the blank :
________ is the most abundant inert gas present in air.
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उत्तर
Argon is the most abundant inert gas present in air.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Write ‘true’ or ‘false for the following;
Carbon dioxide is given out during photosynthesis
Name the components of air with their approximate percentage by volume in air. Does the percentage by volume of each component remain the same, in the atmosphere of different parts of the world? Explain with reasons.
Give word equation for the following conversion:
Nitric oxide to nitrogen dioxide
Air is made up of oxygen only.
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Solvay process is a method to manufacture
Match the following
| 1. | Oxygen | a. | Carbon dioxide |
| 2. | Azote | b. | Nitrogen |
| 3. | Solvay process | c. | Vital life |
| 4. | Gun powder | d. | No life |
