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प्रश्न
Give two examples for the following :
Substances which do not change their states.
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उत्तर
Paper, sugar.
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संबंधित प्रश्न
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
How a liquid changes into its gaseous state ? Explain ?
Fill in the blank
Water boils at ______
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Select the correct alternative
The diameter of a molecule is approximately
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
Describe simple experiment to show that particles of matter have the intermolecular attraction
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
