Classify surface active agents.

Que.: Classify surface active agents.

Ans.:

Classification of surface active agents: Surface active agents are classified in the following ways:

On the basis of the chemical nature:

Thus, according to the nature of the hydrophilic groups they are of four types:

Anionic: Where hydrophilic groups carry negative charge on ionization.

Cationic: Where hydrophilic groups carry positive change on ionization.

Non-ionic: Which do not tend to ionize.

Ampholytic: Where positive and negative charge both are present within the surfactant.

Que.: Classify surface active agents.