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प्रश्न
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
पर्याय
Sulphur dioxide gas
Nitrogen dioxide gas
Carbon monoxide gas
Neon gas
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उत्तर
Neon gas
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संबंधित प्रश्न
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.
Classify Carbon monoxide. Also give a balanced equation to prepare it.
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
Give reason:
When water is heated, we see bubbles rising up.
Name the following:
The main, rare (inert) gas present in air.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
The percentage of carbon dioxide in the air is between 0.2 to 0.4%.
______ present in the air is needed for respiration.
The main component of air is oxygen.
The amount of water vapour in the air is more in windy places than in other areas.
