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प्रश्न
Which gas in the atmosphere is essential for respiration?
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उत्तर
Oxygen is essential for respiration.
संबंधित प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
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Tick (√) the most appropriate answer.
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Give reason:
A burning candle stops burning if covered with a glass tumbler
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The component of air which does not support combustion.
Give word equation for the following conversion:
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Match the following
| 1. | Oxygen | a. | Carbon dioxide |
| 2. | Azote | b. | Nitrogen |
| 3. | Solvay process | c. | Vital life |
| 4. | Gun powder | d. | No life |
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