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प्रश्न
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
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उत्तर
Particles move about very quickly Liquid
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संबंधित प्रश्न
Under what conditions do solids, liquids and gases change their state.
Fill in the blank
_______ can flow.
What are the forces of cohesion and adhesion?
Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move.
Give reason :
The odour of scent spreads in a room.
Give reason :
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Write whether the following statement is true or false.
Solids have the largest inter-molecular space.
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. |
In one sample of brass, the following ingredients were found: copper (70%) and zinc (30%). Identify the solvent, solute and solution from these.
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. |
