The following statement is true: Emulsifiers facilitate the breaking up of large globules by lowering interfacial tension and reducing repellent forces between two immiscible liquids diminishing the liquids attraction to its own molecules.

• A. True
• B. False
• C. Not necessarily
• D. Cannot be determined

Answer: (A)

Emulsifiers work as surface-active agents that sit at the interface between two immiscible liquids, such as oil and water. By lining up at that boundary, they dramatically lower the interfacial tension, which is the energy cost of creating new surface. Lower interfacial tension means mechanical energy is more effectively converted into breaking up a large globule into many smaller droplets, so dispersion becomes easier. In addition, the emulsifier forms a protective film around each droplet, which helps prevent droplets from merging back together by introducing stabilizing repulsive interactions (electrostatic or steric) that reduce coalescence. So the statement captures the essential role: lowering interfacial tension to enable breakup, and providing a stabilizing barrier to keep droplets dispersed. The wording about repellent forces at the interface can be interpreted as this stabilizing effect that helps keep droplets separate, rather than allowing them to coalesce. Therefore, this statement is true.