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प्रश्न
One kind of matter can be distinguished from another by its physical properties and chemical properties.
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उत्तर
Physical Properties— They are those properties which include state, colour, odour, density etc.
Chemical Properties— They are properties which include reactions of different materials with different chemicals.
संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
What is meant by the intermolecular forces of attraction? How do they vary in solids, liquids and gases?
Write true or false for the following statement
In a gas, the molecules can move anywhere in space.
How do the solids, liquids, and gases differ in their following properties.
(a) Size
(b) Shape
(c) Density
Explain the change of a solid into a liquid at a constant temperature.
State the general properties of a solid.
Why liquids do not have definite shape?
Give reason :
Liquids have a definite volume but no definite shape.
What is meant by the inter-molecular forces of attraction ?
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
