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CAIE IGCSE Chemistry Separating Soluble Coloured Mixtures

CAIE IGCSE Chemistry Separating Soluble Coloured Mixtures
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

Practise describing paper chromatography with a pencil baseline, suitable solvent and solvent front to separate soluble coloured mixture components.

How this is tested

  • draw the baseline in pencil and place the mixture as a small spot on the line
  • stand the paper in a suitable solvent with the baseline and sample above the solvent level
  • allow the solvent to rise, mark its front and use separated spots to identify components

Question 1(e)

[Maximum number: 1]

Name the process used to:

identify the components of a mixture of soluble coloured substances