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Is Matter Around Us Pure ? — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?3 Marks
Question
What is chromatography? State its two applications.
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Answer

Chromatography is a technique of separating two or more dissolved solids which are present in a solution in very small quantities. Its two applications are:
  1. Chromatography is used to separate solutions of coloured substances (dyes and pigments).
  2. Chromatography is used to separate small amounts of products of chemical reactions.

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