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प्रश्न
Give an experiment to explain that there are intermolecular spaces between water molecules.
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उत्तर
Take a completely filled glass of water. Add a spoon full of sugar. Stir it well. The volume of water hence the level of water in glass remains the same where has gone the volume of sugar added? Actually the sugar molecules took the spaces (gaps) between the molecules of water and level of water in glass remains the same. This shows that there are intermolecular spaces between the water molecules.
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संबंधित प्रश्न
What are the characteristics of particles of matter?
Define the following term.
Element
Give two examples of the following:
Substances which do not change their states.
When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?
Which of the following statement is incorrect?
Give reasons for the following:
Sugar can be distinguished from talcum powder using water.
Give reasons for the following:
Water on freezing turns into ice.
Give reasons for the following:
A bottle of perfume on opening evolves an odour which can be sensed over a long distance.
Match the following.
| Property | Example |
| Breaks easily (Brittle) | Metal pan |
| Bends readily | Rubber band |
| Can be stretched easily | Cotton wool |
| Gets compressed easily | Mud pot |
| Gets heated readily | Plastic wire |
Mr. Raghu returns home on a hot summer day and wants to have buttermilk. Mrs. Raghu has the only curd. What can she do to get buttermilk? Explain
