Chapter 15, Problem 22R

To determine

To choose: The correct option.

Answer to Problem 22R

Option (D)

Explanation of Solution

Introduction:

The Tyndall effect is a phenomenon that occurs due to scattering of colloidal particles.

The chemical change is a process that occurs when a substance is transformed into new substance with its new properties as compared to the original substance.

A property in which chemical nature of a substance remain intact is known as physical properties.

A heterogeneous mixture in which solute particles remains suspended into the other substance is known as suspension.

The scattering of beam of light from a colloid mixture is known as Tyndall effect. A sunbeam is visible due to scattering of air particles. The particles in air act as colloid. When a sunbeam passes through air, scattering occurs. Hence, visible sunbeam is an example of the Tyndall effect. Therefore, the correct option is (D).

Conclusion:

Thus, the correct option is (D).