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प्रश्न
The molecules move only within the boundary of
विकल्प
liquids
gases
solids
none of the above
उत्तर
liquids
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संबंधित प्रश्न
The process of a gas converting directly into solid is called vaporization.
Write true or false For the following Statement
The molecules in a substance arc in random motion.
Select the correct alternative
The solids are
Explain the change of a solid into a liquid at a constant temperature.
Give reason :
Why do liquids and gases flow but solids do not?
Name the phenomenon which cause the following change.
Conversion of water into steam.
Select natural and man-made matter from the following list:
Wood, plastic, silk, medicines, detergents, coal, water, ceramic, cotton, glass, nylon, fruits.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
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 'X' | A: Condensation |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Freezing |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting point |
| F: Boiling point |
Define the term ‘Liquefaction of gases’.
