Question

What are the three states of matter? Define each of them with two examples.

Answer 1

Hint: As we can see that matter can be felt with the senses. When we touch a chair, we can feel that there is something that occupies some space. It is found that the fundamental particle of every matter is an atom, that takes part in each chemical reaction.

Complete answer:
There are basically three states of matter, that are- solid, liquid and gaseous. Let’s discuss in brief about each of them:
(1) Solid state of matter:
It is found that solids differ from gases and liquids by the property of rigidity. The molecules in solids are tightly packed, as there are strong intermolecular forces present.
Examples: Iron, Wood.
(2) Liquid state of matter:
The molecules in liquids are closely packed, as there are weak intermolecular forces present. It is found that liquids have fixed volume, their density lies in between solids and gases. Example: Water, Oil
(3) Gaseous state of matter:
There are no intermolecular forces present. As we know that gases don't have any fixed volume or shape, and also have high thermal expansion, compressibility.
Examples: Nitrogen gas and Oxygen gas.

Note:
We have discussed that there are three states of matter that are solid, liquid and gaseous. But, it is found in recent discoveries that the fourth state of matter is seen as plasma, that is having properties other than three.