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प्रश्न
Give two examples for of the following
Substances which sublime.
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उत्तर
Naphthalene, camphor, dry ice.
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संबंधित प्रश्न
How do the solids, liquids, and gases differ in their following properties.
(a) Size
(b) Shape
(c) Density
Give a reason for the We need to classify things.
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Name the phenomenon which cause the following change.
Conversion of ice into water.
Multiple choice question.
Gases
Define matter
Differentiate between living and non-living matter.
Which one is a kind of matter
One kind of matter can be distinguished from another by its physical properties and chemical properties.
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 |
