Oily substances mixed with non-dissolving solvents are called.

• A. Emulsions
• B. Elixirs
• C. Syrups
• D. Parenteral Medications

Answer: (A)

When two liquids don’t mix, the system can form an emulsion, where one liquid (often oil) is dispersed as tiny droplets within another liquid that does not dissolve it (usually water). Emulsions are heterogenous and require an emulsifying agent to keep the droplets from coalescing and separating. This concept is why the term fits: oily substances mixed with a non-dissolving solvent create droplets of oil in the continuous phase, rather than a true solution.

Elixirs are hydroalcoholic solutions where substances are dissolved, not dispersed as droplets. Syrups are concentrated sugar solutions. Parenteral medications describe how a drug is given (injected) and can be solutions, suspensions, or emulsions, but the term itself isn’t about the phase relationship. So the best descriptor for oily, immiscible mixtures is an emulsion.