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प्रश्न
Give reasons for the following:
Sugar can be distinguished from talcum powder using water.
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उत्तर
Sugar is soluble in water whereas talcum powder is not.
संबंधित प्रश्न
Define interconversion of states of matter. What are the two factors responsible for the change of states of matter?
Why do solids, liquids and gases differ in their physical states ?
Write your observation and conclusion for the following.
When a small stone is gently dipped into a glass filled with water.
Write true or false for statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Give two examples of the following:
Substances which are rigid and not compressible.
There are large intermolecular gaps in
- water
- iron ball
- common salt
- air
Give reason of A gas fills up the space available to it.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to density.
State in which of the following examples ie. a piece of wood, water, light gas is the Inter-particle attraction maximum.
