A child wanted to separate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the filter paper and placed the filter paper in a glass containing water as shown in Fig.2.3. The filter paper was removed when the water moved near the top of the filter paper. (i) What would you expect to see, if the ink contains three different coloured components? (ii) Name the technique used by the child. Suggest one more application of this technique.
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
- If the ink contains three different coloured components, then you can observe three different bands on the paper
- Child uses the technique of paper chromatography
- Paper chromatography is used to separate different pigments present in the
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