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प्रश्न
When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?
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उत्तर
The absence of increase in volume of water on dissolution of sugar into it, describes the following characteristics of matter:
- Matter is made up of very, very small particles.
- Particles of matter have spaces between them.
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संबंधित प्रश्न
What are the characteristics of particles of matter?
Give reasons:
Solids cannot be compressed.
Fill in the blank:
The change of water vapour into water is called ......................
How will you prove by an experiment that solids occupy space ?
Fill in the blank:
Any matter which has a definite.................... but no definite shape is called a...............
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Fill in the blank
The physical state of a substance, which has a fixed volume but no fixed shape is _______
Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own?
Give a reason why:
Gases have no definite volume and no definite shape.
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 |
