Question

which technique involves passing a mixture through a porous barrier to separate particles based on size?
distillation
chromatography
magnestism
filtration

Explanation:

• Distillation separates mixtures based on boiling points.
• Chromatography separates based on differential partitioning between phases.
• Magnetism separates magnetic from non-magnetic materials.
• Filtration uses a porous barrier to separate particles by size, allowing smaller components (liquid/small particles) to pass while retaining larger particles.

Answer:

filtration