Chlorophyll is a pigment present in leaves, which imparts green colour to them. Which of the following technique can be used to extract the green pigment from leaves?

1. Evaporation
2. Chromatography
3. Filtration
4. Crystallisation

The correct option is B Chromatography

Chromatography is a process that separates various coloured components present in an ink/dye/plant extract, based on difference in solubilities of various components that dissolve in same solvent. Therefore, green pigment can be separated from leaf extract using chromatography technique.