What Was The Aim Of Chromatography?

The aim of the experiment is to separate the various photosynthetic pigments like chlorophyll A, chlorophyll B, xanthophylls,etc

By calculating the Rf values one can confirm the type of pigment.

Chromatography is used to find out the type and amount of different chemicals in a substance. The substance is usually dissolved in a liquid and then spun around at speed in a Chromatography machine. Different chemical structures are separated by weight. You compare your results to tables of known substances and try to find a match which will tell you what chemical structures your substance contains.

The aim of chromatography is to know the components of a certain mixture by separating them.

Nice answer but it's wrong. I believe you just described partition chromatography. That came much later(1956). The original chromatography was discovered fifty years earlier by a Russian botinist named Mikhail Tsvet (whose last name, coincidentally, means "color") who was researching chlorophyll. He wound up separating all the pigments making up the colors of flowers. The process was popularized and developed to include the chromatographic processes we use today.