Which of the following processes is used to separate components of ink?

Chromatography is the correct process used to separate the components of ink because it relies on the principle of differential solubility and adsorption of the components in the mixture. In chromatography, a solvent carries the ink solution through a stationary phase, usually a solid or a viscous liquid. As the solvent moves, the components of the ink travel at different rates due to their varying affinities for the mobile phase (the solvent) and the stationary phase (the medium they are moving across). This results in the separation of the different colored pigments or dyes in the ink as they form distinct spots or bands along the chromatography medium.

Simple distillation is suitable for separating substances with significantly different boiling points, but it wouldn't effectively separate the complex mixture found in ink. Filtration is useful for separating solid particles from liquids but does not apply here as ink is a solution of dyes that needs to remain in solution. Fractional distillation is another method for separating mixtures based on boiling points but is more appropriate for separating liquid mixtures where components have closer boiling points, which does not pertain to the separation of ink components. Therefore, chromatography is the best method for separating the individual colors present in ink.