Question

what separation technique is illustrated in the picture? decantation chromatography distillation filtration

Explanation:

The image shows a paper with separated colored components that have moved up from a solvent at the bottom, which matches the process of chromatography, specifically paper chromatography, where components of a mixture are separated based on their different solubilities in a mobile solvent phase and adsorption to a stationary solid phase. The other techniques do not match: decantation is pouring off a liquid, distillation uses boiling/condensation, and filtration separates solids from liquids using a filter.

Answer:

chromatography