Please select a subject first
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Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
Concept: undefined >> undefined
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.
Concept: undefined >> undefined
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Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Concept: undefined >> undefined
Write whether the following statement is true or false.
A gas has no free surface.
Concept: undefined >> undefined
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Concept: undefined >> undefined
Write true or false for statement. Rewrite the false statement correctly.
Solids and liquids can flow.
Concept: undefined >> undefined
Write true or false for statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Concept: undefined >> undefined
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
Concept: undefined >> undefined
For the following statement, say whether it describe a solid, a liquid or a gas.
Particles are quite close together.
Concept: undefined >> undefined
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions.
Concept: undefined >> undefined
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. |
Concept: undefined >> undefined
Match the columns.
| (1) iron and gold | (a) molecules are very far apart |
| (2) melting | (b) pure substance |
| (3) intermolecular space | (c) non - metals |
| (4) compound | (d) the space between the molecules |
| (5) gases | (e) change from solid to liquid |
| (f) metals |
Concept: undefined >> undefined
Name the phenomenon which cause the following change:
Formation of water vapour from water.
Concept: undefined >> undefined
Name the phenomenon which cause the following change:
Disappearance of camphor.
Concept: undefined >> undefined
Name the phenomenon which cause the following change:
Conversion of ice into water.
Concept: undefined >> undefined
Name the phenomenon which cause the following change:
Conversion of water into steam.
Concept: undefined >> undefined
Give two examples of the following:
Substances which do not change their states.
Concept: undefined >> undefined
Give two examples of the following:
Substances which are rigid and not compressible.
Concept: undefined >> undefined
The state of matter which has no definite shape or volume is called
- solid
- liquid
- gas
- water
Concept: undefined >> undefined
There are large intermolecular gaps in
- water
- iron ball
- common salt
- air
Concept: undefined >> undefined
