Which process is commonly used to separate soluble compounds from insoluble compounds in a mixture?

• A. Distillation
• B. Evaporation
• C. Filtration
• D. Chromatography

Answer: (C)

Verified step by step guidance

1. Understand the nature of the mixture: soluble compounds dissolve in a solvent, forming a homogeneous solution, while insoluble compounds do not dissolve and remain as solid particles.
2. Recall that filtration is a technique used to separate solids from liquids by passing the mixture through a filter that allows the liquid and dissolved substances to pass but traps the insoluble solid particles.
3. Recognize that distillation and evaporation are methods used to separate components based on differences in boiling points, which is not the primary method for separating soluble from insoluble substances.
4. Chromatography is a technique used to separate components based on their movement through a stationary phase, often used for mixtures of dissolved substances, but not typically for separating insoluble solids from solutions.
5. Therefore, the process commonly used to separate soluble compounds from insoluble compounds in a mixture is filtration, because it physically separates the undissolved solids from the liquid solution.