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प्रश्न
Give two examples for the following :
Substances which do not change their states.
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उत्तर
Paper, sugar.
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संबंधित प्रश्न
Define interconversion of states of matter.
Define Intermolecular space.
Select the correct alternative
The diameter of a molecule is approximately
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
Define the Intermodular force of attraction.
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 |
The intermolecular force is _______ in the particles of solid.
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
