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Question

The different colours from an extract of green leaves can be separated by :

A
evaporation
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B
distillation
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C
filtration
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D
chromatography
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Solution

The correct option is C chromatography
Chromatography is a chemical technique for separating mixtures of coloured chemicals. This technique is important in biology as well as chemistry. In fact there are several different kinds of chlorophyll and some other photosynthetic pigments in green plants.

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