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प्रश्न
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
पर्याय
Physical
Chemical
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उत्तर
Physical
संबंधित प्रश्न
Evaporation takes place at ...............temperature.
Fill in the blank
In a solid, the molecules ............................................ but they remain at their fixed positions.
Fill in the blank
The inter-molecular forces are the weakest in ...............
Fill in the blank
A solid exerts pressure .....................
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
Why do solids, liquids, and gases differ in their physical states?
Water cycle is an example of interconversion of states of water. Explain.
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Write whether the following statement is true or false
All solids, on heating, first change to the liquid and then to the gaseous state always.
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 |
