Consider the following state- ments about mixture- 1. substance can be sepa- rated into other kinds of matter by any physical pro- OZSS. 2. Dissolved sodium chloride can be separated from water by the physical process of evaporation. Which of the statements given above is/are correct?

Statement 1 is incorrect because it describes a pure substance, not a mixture. A pure substance is a kind of matter that cannot be separated into other kinds of matter by any physical process [2]. In contrast, a mixture consists of two or more substances that retain their individual properties and can be separated by physical means. Statement 2 is correct as it accurately identifies that dissolved sodium chloride (common salt) can be separated from water through the physical process of evaporation [3]. Evaporation works because the solvent (water) has a much lower boiling point than the solute (salt), allowing the liquid to vaporize while leaving the solid residue behind. Therefore, only the second statement is a correct description of the properties and separation of mixtures.

Sources

1. [2] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 8: Nature of Matter: Elements, Compounds, and Mixtures > 8.3.2 Compounds > p. 124
2. [3] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 8: Nature of Matter: Elements, Compounds, and Mixtures > Snapshots > p. 130