A mixture of plant pigments can be separated by chromatography. The reason for this is that chromatography is used for the separation of coloured substances into individual components. Which of the following is true about chromatography?
1) Chromatography is a technique used for the separation of plant pigments.
2) Chromatography is a technique used for the separation of mixtures.
3) Chromatography is a technique used for the separation of coloured substances.
4) Chromatography is a technique used for the separation of individual components.