Which term describes mixtures in which one liquid is dispersed as droplets in another liquid?

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

Answer: (A)

Liquid-liquid dispersions are called emulsions. In an emulsion, droplets of one liquid float in another liquid without dissolving, and they stay dispersed thanks to an emulsifier or stabilizer that helps keep the droplets from coalescing. This is different from a solution, where the solute dissolves completely in the solvent to form a single, uniform phase with no droplets. It’s also different from a suspension, which has solid particles dispersed in a liquid and can settle out over time. Fumigants are pesticides used as gases or vapors, not liquid-liquid mixtures. So, the term that describes mixtures with one liquid dispersed as droplets in another is emulsions.