The components in an unknown mixture are separated based on differences in their speed along the stationary phase.
Chromatography is a separation technique which us used to separate the components of a colored mixture based on the ability of the components to move along a medium at different speeds.
The components of a colored mixture have different densities and different adsorption properties.
Thus they move at different speeds over the stationary phase of the chromatogram.
Therefore, the components of an unknown mixture are separated based on differences in their velocity in the stationary phase.
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