Question

Which of the following statements about a mixture is TRUE?

• A. It is a pure substance
• B. Formation of a mixture is a physical change
• C. Its constituents do not retain their individual properties
• D. It is always homogeneous

Answer 1

The correct option is B Formation of a mixture is a physical change

In a mixture, when the constituents are mixed, it is only a physical change and not chemical. A mixture is not a pure substance as its made up of more than one kind of molecules. Also, its constituents retain their properties. A mixture can be either homogeneous or heterogeneous in nature. Homogeneous mixture has the same uniform composition and appearance. Heterogeneous mixture consists of different phases.