Question

Which of the following is not an emulsion?

• A. Milk
• B. Cold cream
• C. Butter
• D. Shaving cream

Answer 1

The correct option is D

Shaving cream

Explanation for correct option:

D. Shaving cream

Emulsion:

• “Emulsions are colloidal systems in which both dispersed phase and dispersion medium are liquids.”
• An emulsion can be categorized into two types:

1. Oil in water type
2. Water in oil type

• "The process of making an emulsion is known as Emulsification."
• An example of a liquid-liquid emulsion is Milk as well as hair cream.

Shaving cream is an example of emulsion rather it is a type of foam. It is a type of colloid in which gas is dispersed in a liquid.

Explanation for incorrect options:

Milk, Butter, and Cold cream are examples of emulsion while shaving cream is a type of foam. Thus options A, B, and C are incorrect.

Hence, the correct option is D i.e. Shaving cream.