Classify the following into pure substance and mixtures
(a) Air
(b) Copper
(c) Silver
(d) A sugar solution
(e) Wind
(f) A salt solution
(g) Carbon dioxide
(h) Water
(i) Nitrogen
(j) Iron
(k) Oxygen
(l) milk
(m) Blood
(n) Gold
(o) Brass

AcademicChemistryNCERTClass 6

(a) Air - mixture

(b) Copper - pure substance

(c) Silver - pure substance

(d) A sugar solution - mixture

(e) Wind - mixture

(f) A salt solution - mixture

(g) Carbon dioxide - mixture

(h) Water - mixture

(i) Nitrogen - pure subs.

(j) Iron - pure substance

(k) Oxygen - pure substance

(l) milk - mixture

(m) Blood - mixture

(n) Gold - pure substance

(o) Brass - mixture

Matter can be broken down into two categories: pure substances and mixtures. 
Pure substances are further broken down into elements and compounds.
Examples: Gold, Oxygen, Nitrogen

Mixtures consist of two or more different kinds of particles or two or more pure substances mixed together but not chemically bound.
Example: The sugar solution is a mixture because it can be separated into its constituents by physical processes (like evaporation). It shows the properties of both sugar and water.
Updated on 10-Oct-2022 13:40:49