CBSE | NCERT CLASS

Matter In Our Surroundings Solution of NCERT In Text Questions - part-2 Question No: – 7 (a) A gas fills completely the vessel in which it is kept. Explain on the basis of molecular theory. Answer: There is negligible intermolecular force  between particles of gas. As a result, particles of gas move in all directions. Hence, gas particles fill the vessel completely in which it is kept.

Question No: 1 – Among them which are matter? Chair, air, love, smell, hate, almonds, thought, cold, cold-drink, smell of perfume. Answer: - Chair, air, almonds, and cold-drink are matters. Matter: The physical quantities which has mass and occupied space is called matter.

What is matter? Anything which occupies space, has mass and offers resistance to force applied on it is called matter. Example: book, table, water, stone. But love, sad are not matter.