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प्रश्न
What are molecules?
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उत्तर
Molecules are made of atoms. Molecules exhibit the properties of that kind of matter and have independent existence.
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संबंधित प्रश्न
What are fluids ? Give two examples.
Differentiate between the following.
Liquids and gases .
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 each statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Write true or false for the following statement
The inter-molecular forces are effective at all distances between the two molecules.
Give a reason for the Electricity is not considered matter.
Give reason :
A gas fills up the space available to it.
Fill in the blank
Molecules in a ............ are packed very closely.
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
Particles of matter possess energy due to their random motion. Compare the particles in a solid, liquid and in gas with reference to the amount of kinetic energy possessed by each.
