Question

which process is used to separate soluble compounds from insoluble compounds? select one: ∘ sublimation ∘ filtration ∘ extraction ∘ decantation

Explanation:

• Sublimation is for separating substances that sublime (solid to gas directly), not for soluble/insoluble mixtures.
• Filtration uses a filter medium to separate insoluble solids from a liquid (where the solute is soluble), so it separates soluble (in liquid) from insoluble (solid) compounds.
• Extraction is for separating components based on solubility in different solvents, not specifically soluble from insoluble in a single solvent - based mixture.
• Decantation is just pouring off a liquid from a solid - liquid mixture, not an effective separation for fine insoluble solids from soluble solutes.

Answer:

B. Filtration