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प्रश्न
Which of the following components of air is present in the largest amount in the atmosphere?
पर्याय
Nitrogen
Oxygen
Water vapour
Carbon dioxide
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उत्तर
Nitrogen
Explanation:
Atmospheric air contains all four mentioned components but the component with the largest amount present in the air is nitrogen, which constitutes 78% of the atmospheric air whereas oxygen constitutes 21% and the remaining 1% is formed by water vapour, carbon dioxide, few other gases and dust particles.
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संबंधित प्रश्न
State three uses of water vapour in the air.
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Write fully balanced equation for the following :
CO2 + H2O →
Give the chemical name of rust.
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
The diagrams below represents an experiment to show the presence of a component of air.
- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
State whether the following statement is true or false. If false, correct them.
Plants consume oxygen for respiration.
