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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.
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उत्तर
Dust particles help in the precipitation of water vapour in air.
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संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Name the main components of air.
Classify Water. Also give a balanced equation to prepare it.
Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
Name the following:
The active component of air which supports combustion and is used up in burning
Which gas is essential for burning?
What was the old name of nitrogen?
The amount of water vapour in the air is more in windy places than in other areas.
Tri oxygen molecule is known as ______.
Explain the following observations very briefly
Breathing through mouth may harm you.
