Which process uses a porous barrier to separate a solid from a liquid?

Which process uses a porous barrier to separate a solid from a liquid?

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

Answer: (D)

Filtration is used to separate a solid from a liquid when the solid does not dissolve in the liquid. A porous barrier, like filter paper or a membrane, blocks the solid particles but lets the liquid pass through. The liquid that passes through is called the filtrate, and the solid left behind on the barrier is the residue. This method works well for insoluble solids in liquids. Other processes don’t rely on trapping solid particles with a barrier. Evaporation changes the liquid to vapor to leave solids behind, distillation separates liquids by boiling points, and chromatography separates components based on how they interact with a stationary phase and a moving phase.

Filtration is used to separate a solid from a liquid when the solid does not dissolve in the liquid. A porous barrier, like filter paper or a membrane, blocks the solid particles but lets the liquid pass through. The liquid that passes through is called the filtrate, and the solid left behind on the barrier is the residue. This method works well for insoluble solids in liquids.

Other processes don’t rely on trapping solid particles with a barrier. Evaporation changes the liquid to vapor to leave solids behind, distillation separates liquids by boiling points, and chromatography separates components based on how they interact with a stationary phase and a moving phase.