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प्रश्न
Write whether the following statement are true or false.
A gas has no free surface.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Define the following term Element .
Write true or false for each statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
Select the correct alternative
The molecules ____________
Define Matter.
Define the Atom.
Define Molecule.
Give reason :
A red ink drop added to a small amount of water in a glass turns water red in some time.
Particles of matter possess energy due to their random motion. Compare the particles in a solid, liquid and in gas with reference to the amount of kinetic energy possessed by each.
State the correct term from A, B, C, D, E or F in List II which represents the – change of state of matter or its relevant property from List I
| List I | List II |
| 1. Solid 'X' to a liquid 'Y' | A: Liquefaction |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Solidification |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting Point |
| F: Boiling point |
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
