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प्रश्न
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.
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उत्तर
| Solids | They have any number (of free surfaces) |
| Liquid | They have one free surface |
| Gases | They have no free surfaces |
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संबंधित प्रश्न
Name the phenomenon which cause the following change:
Conversion of ice into water.
A substance which can change its state
- wood
- oxygen
- paper
- cloth
What happens when a solid is heated ?
Write whether the following statement are true or false.
The intermolecular force of attraction is the weakest in gases.
The state of matter which has no definite shape or volume is called
Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
Which one of the following statements is not true?
- the molecules in a solid vibrate about a fixed position
- the molecules in a liquid are arranged in a regular pattern
- the molecules in a gas exert negligibly small forces on each other, except during collisions
- the molecules of a gas occupy all the space available
Give reasons for the following:
Water on freezing turns into ice.
Give a reason for the following:
Liquids have one free upper surface only.
Complete the statement by filling the blank with the correct word given below.
In naphthalene, the inter-particle attraction is _______.
