Final answer:
Chromatography is a procedure that can be used to separate p-dichlorobenzene from p-chloroaniline. It involves the separation of components based on their different abilities to adsorb onto a solid phase and solubilize in a liquid phase.
Step-by-step explanation:
A procedure that might be used to separate p-dichlorobenzene from p-chloroaniline is chromatography. Chromatography is a technique that separates mixtures based on the different abilities of components to adsorb onto a solid phase and solubilize in a liquid phase. The components of the mixture will separate as they ascend through the capillaries in the chromatography paper, with the component that has less ability to solubilize in the liquid phase getting adsorbed onto the solid phase to a greater extent and taking a longer time to pass through the system.