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प्रश्न
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
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उत्तर
| Nitrogen | Oxygen | Carbon dioxide | |
| Density | As heavy as air | Slightly heavier than air | `1 1/2` times heavier than air |
| Solubility | Very slightly soluble | Slightly soluble | Fairly Soluble in water |
| Nature | Neutral | Neutral | Slightly acidic |
| Reactivity | Unreactive | Very reactive | Reactive |
APPEARS IN
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.
Name the main components of air.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Solution of carbon dioxide in water is called _________ acid.
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.
What is the composition of air?
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
Write the reaction of carbon dioxide with lime water.
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
