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प्रश्न
Give two examples for of the following
Substances which do not change their states.
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उत्तर
Paper, sugar.
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संबंधित प्रश्न
State three characteristics of molecules of matter.
Give the molecular model for a solid and use it to explain why a solid has a definite volume and a definite shape.
Distinguish between the three states of matter—solid, liquid, and gas on the basis of their molecular models
What are the two conditions for the interconversion of states of matter?
Water cycle is an example of interconversion of states of water. Explain.
Fill in the blank
Water boils at .............
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Write true or false for the statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
What is meant by the inter-molecular forces of attraction ?
Select natural and man-made matter from the following list:
Wood, plastic, silk, medicines, detergents, coal, water, ceramic, cotton, glass, nylon, fruits.
