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प्रश्न
Write whether the following statement are true or false.
A gas has no free surface.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Define: Solid
Define Intermolecular space.
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Write true or false for each statement. Rewrite the false statement correctly.
The smallest part of an element capable of independent existence is called an atom.
Select the correct alternative
The diameter of a molecule is approximately
What is a molecule?
What are molecules?
Match the column.
| Column A | Column B |
| 1. iron and gold | a. molecules are very far apart |
| 2. melting | b. pure substance |
| 3. intermolecular space | c. non-metals |
| 4. compound | d. the space between the molecules |
| 5. gases | e. changes from solid to liquid |
| f. metals |
Particles of matter possess energy due to their random motion. Compare the particles in a solid, liquid and in gas with reference to the amount of kinetic energy possessed by each.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
