Which of the following is an example of emulsion?

Correct option is B

Correct Answer:B) Face cream

Explanation:

An emulsion is a mixture of two immiscible liquids, typically oil and water, where one liquid is dispersed in the other in the form of tiny droplets.

Face cream is an example of an emulsion because:

• It consists of oil and water mixed together with the help of an emulsifying agent.
• The water is dispersed in oil or vice versa, creating a smooth and stable product.

Why the other options are incorrect:

• Foam: Foam is a colloidal system where gas is dispersed in a liquid or solid (e.g., shaving cream, sponge).
• Sponge: A sponge is a solid with trapped air pockets, not an emulsion.
• Rubber: Rubber is a polymer material, which is neither a colloid nor an emulsion.

Key Points:

·         Emulsions are widely used in cosmetics, food, and pharmaceuticals.

·         Examples of emulsions include milk, mayonnaise, lotions, and creams.

·         Emulsifying agents like lecithin or soaps are used to stabilize emulsions.