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प्रश्न
Give reason :
When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.
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उत्तर
Add one teaspoon of sugar to it and stir. The sugar disappears but the level of water in the glass does not rise that means the volume of water has not increased. Because the sugar particles are adjusted between the water molecules. This shows that there are intermolecular gaps in water.
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संबंधित प्रश्न
Classify the following into solid, liquid and gas:
Coal, kerosene, wood, oxygen, sugar, blood, water vapour, milk, wax.
Write true or false for each statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Write true or false for each statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
What is a molecule?
Write your observation and conclusion for the following:
When one of the balloons suspended to the metre scale is punctured while other remains inflated?
Multiple choice question.
Which one is a kind of matter:
Identify the odd term out and explain.
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms, very closely packed | A: Solids |
| 2. Interparticle space is maximum | B: Liquids |
| 3. Force of attraction between particles is very weak | C: Gases |
| 4. Movement of particles is about their own position | |
| 5. Particles in the state of matter are slightly compressible and not closely packed. |
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A crystal of iodine on slow heating in a closed flask turns into vapours and fills the complete flask.
Write scientific reason.
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