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Chemistry · May / June 2026 · Paper 11 · Question 39

5070Chromatography

Chromatography is used to separate and identify dyes in a mixture. Which statement is correct?

  1. AA dye can have an Rf value of 1.2.
  2. BA dye can have different Rf values with different solvents.
  3. CAll blue dyes have the same Rf value.
  4. DChromatography can only be used for coloured substances such as dyes.

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Correct answer: B. A dye can have different Rf values with different solvents.

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