Advertisements
Advertisements
प्रश्न
At high altitudes, water boils above 100° C.
पर्याय
True
False
Advertisements
उत्तर
False.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The inter-molecular forces are the weakest in ...............
Explain the change of a solid into a liquid at a constant temperature.
Classify the following into solids, liquids, and gases. Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
How a liquid changes into its gaseous state? Explain?
Give a reason for the Liquids can flow easily.
Name the phenomenon which cause the following change.
Disappearance of camphor.
Give two examples for of the following
Substances which do not change their states.
What are the two main types of matter?
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
