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प्रश्न
Give reason :
A red ink drop added to a small amount of water in a glass turns water red in some time.
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उत्तर
If we put a drop of red ink in a glass of water, its particles diffuse with particles of water slowly but continuously and the water turns red.
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संबंधित प्रश्न
Write your observation and conclusion for the following:
Ice is kept at room temperature.
Define the following term Element .
Differentiate between the following.
Liquids and gases .
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
Define matter.
Differentiate between the following:
Atoms and molecules
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
Multiple choice question.
A substance which can change its state
Give two examples.
Liquid element
