What term describes a mixture of two immiscible liquids made miscible by emulsifying agents?

• A. Emulsions
• B. Solutions
• C. Suspensions
• D. Colloids

Answer: (A)

Two immiscible liquids won’t mix on their own. When an emulsifying agent is added, it lowers the interfacial tension between the liquids and stabilizes dispersed droplets, forming an emulsion—a liquid-liquid colloidal system where tiny droplets of one liquid are dispersed throughout the other. This term precisely describes a mixture of two immiscible liquids made miscible by emulsifying agents.

Solutions involve dissolving a solute in a solvent to form a homogeneous phase, so they don’t apply to immiscible liquids. Suspensions contain solid particles dispersed in a liquid, not droplets of one liquid in another. Colloids is a broader category that includes emulsions, but the specific case described—two immiscible liquids made miscible with an emulsifier—fits the emulsion concept.