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प्रश्न
Fill in the blank:
The change of water vapour into water is called ......................
उत्तर
The change of water vapour into water is called condensation.
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संबंधित प्रश्न
What do you observe when a gas jar which appears empty is inverted over a gas jar containing Bromine vapours? Name the phenomenon.
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Give reason:
A red ink drop added to small amount of water in a glass turns water red in some time.
Fill in the blank:
Water boils at ............
Write whether the following statement is true or false.
Solids have the largest inter-molecular space.
Give reason Liquids can flow easily
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to space.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to volume.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
Among the following ______ is not a mixture.
