Concept:Mixtures are separated using physical methods that do not change their chemical composition.
Explanation:Chromatography separates components based on their movement through a medium.
Crystallization separates a solute from a solution by forming solid crystals.
Distillation separates liquids based on differences in boiling points.
Electrolysis is a chemical process that uses electrical energy to decompose compounds.
It is used for extracting metals, refining copper and zinc, manufacturing chlorine, and electroplating.
Therefore, electrolysis does not separate mixtures; it decomposes compounds.
Answer:D. Electrolysis