Chemistry
Answer
Air is a homogeneous mixture of a number of gases like nitrogen, oxygen, carbon dioxide, water vapour and inert gases, etc. These gases in air are physically mixed, not chemically bonded to each other so, air cannot be a compound. It cannot be an element as element contains only one type of atom. Hence, we can say that air is a mixture and not an element or compound.
Related Questions
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(a) Why was the antiseptic liquid not effective ?
(b) What was the use of alum here ?
(c) Who according to you has a proper knowledge of colloidal solutions - Rani or her husband ?