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CAIE A-Level Biology 13.1.6 Chromatography of Chloroplast Pigments

Practise measuring pigment and solvent-front distances from one origin, calculating unitless Rf and explaining changes through solvent, stationary phase or temperature.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • measure pigment and solvent-front distances from the same origin baseline
  • calculate Rf as pigment distance divided by solvent-front distance without units
  • explain differing Rf values through solvent, stationary phase or temperature changes

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