O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2012 · Q11 Mark
It is suspected that a lollipop contains traces of a poisonous green dye (boiling point 73°C) as well as two harmless orange and red dyes (boiling points 69 °C and 73°C respectively). What is the best method by which the green dye may be detected?
Afiltration
Bfractional distillation
Cpaper chromatography
Drecrystallisation
✓ Correct answer
C: paper chromatography
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