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प्रश्न
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.
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उत्तर
Solids: Common salt, Wax, Stone, Sugar, Coal, Butter, Copper.
Liquids: Milk, Mercury, Blood, Coconut, oil, Kerosene.
Gases: Oxygen, Water, vapour, Carbon-dioxide.
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संबंधित प्रश्न
Distinguish between solids, liquids, and gases on the basis of their following properties :
(a) compressibility
(b) fluidity
(c) rigidity
(d) expansion on heating
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
What are the two conditions for the interconversion of states of matter?
Fill in the blank
......... can flow.
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.
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Match the following
| Column A | Column B | ||
| a | Solids | 1 | Can flow in all directions |
| b | Sublimination | 2 | The temperature at which a liquid changes into its gaseous state |
| c | Boiling Point | 3 | Can have any number of free surfaces |
| d | Gases | 4 | Gaps between particles |
| e | Intermolecular space | 5 | Change of state from solid to gas |
Complete the statement given below by selecting the correct word.
____ is an example of a crystalline substance.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
What are the similarities between a gas and a liquid?
