Question

In emulsion what is the state of the dispersed phase and dispersion medium?

Answer 1

Hint: To answer this question we should know about the colloids, dispersion phase, and dispersion medium. Colloids are also known as colloidal dispersion because the substance particles remain dispersed and do not settle down. It is composed of liquid, solid, or gas particles that are dispersed in a continuous phase.

Complete answer:
Colloids or colloidal solution: It is a heterogeneous mixture in which the substances are regularly suspended throughout the liquid. It has a fixed particle size that ranges from $1nm$ to $1000nm$ . It appears to be a homogeneous solution due to the suspension of the substance through the liquid. Common examples of a Colloidal Solution are the starch solution, Blood, Milk.
Dispersed Phase: The Phase that is scattered through the liquid or present throughout the liquid in the form of particles or droplets is called the Dispersed phase.
Dispersion Medium: The medium in which the colloidal particles are scattered or dispersed is called the dispersion medium. Let’s take the example of the Starch Solution. In the Starch solution Starch is the dispersed phase, and water is the Dispersion medium.
Now we discuss the emulsion. It is a colloidal solution made up of two liquids which means it has liquid as its dispersed phase and liquid as its dispersion medium as well. Milk is the most common example of an emulsion in which fat globules are scattered through an aqueous solution.

Note:
Emulsions are generally used in Pharma industries for producing medicines to increase their stability. It is used in chemical synthesis for making polymer dispersion. It is also used in cosmetics. Antiseptics and disinfectants form emulsions when added to water.