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प्रश्न
What are molecules?
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उत्तर
Molecules are the smallest unit of matter. They exhibit all the properties of that kind of matter and is capable of independent existence.
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संबंधित प्रश्न
What are fluids? Give two examples
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, L.P.G, carbon- dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Give reasons
Liquids and gases flow but solids do not?
Fill in the blanks:
The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.
Describe simple experiments to prove that solids have mass
Complete the statement given below by selecting the correct word.
Solids and liquids have a definite ____ but gases do not.
State the property of the following substance.
Chlorine gas has a – strong irritating odor.
State the property of the following substance.
Sodium nitrate is soluble in water, but calcium carbonate is not.
Complete the given analogy.
Solid: Definite shape:: ______: Shape of the vessel.
The feather and paper cup can float on the water.
