Which process involves the incorporation of a solid into a liquid to create a uniform mixture?

The process of creating a uniform mixture by incorporating a solid into a liquid is best described by emulsification. Emulsification is specifically related to the mixing of two immiscible liquids, often involving the dispersion of one liquid (which may contain solid particles) into another, resulting in a stable and uniform mixture. This process typically requires the use of an emulsifying agent to maintain stability and prevent separation. For example, in pharmacy and food industries, emulsification is crucial when creating mixtures such as creams or sauces.

While other processes listed may involve the interaction between solids and liquids, they serve different purposes. Levigation refers to the process of reducing the particle size of a solid by grinding it in a small amount of liquid to create a smooth paste. Trituration involves grinding a solid into a fine powder, often in a mortar and pestle, and is not focused on creating a uniform mixture in the same manner as emulsification. Filtration is a technique used to separate solids from liquids, primarily to clarify or purify solutions, rather than to create a uniform mixture. Understanding these distinctions helps clarify why emulsification is the correct choice for the question at hand.