Which of the following methods could be used to separate an insoluble solid from a soluble solid in a mixture?

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

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the nature of the mixture components. Here, you have an insoluble solid and a soluble solid mixed together.
2. Step 2: Recall that filtration is a technique used to separate an insoluble solid from a liquid or solution because the solid particles are trapped by the filter while the liquid passes through.
3. Step 3: Consider evaporation, which removes a solvent by turning it into vapor, leaving dissolved solids behind, but it cannot separate an insoluble solid from a soluble solid directly.
4. Step 4: Distillation separates components based on differences in boiling points of liquids, so it is not suitable for separating solids in a mixture.
5. Step 5: Chromatography separates components based on their movement through a medium, often used for mixtures of dissolved substances, but not typically for separating insoluble solids from soluble solids.