Method (C)

GCSE · Chemistry · AQA · C8.2 — Chromatography: paper chromatography, calculating Rf values and identifying pure vs impure substances (required practical)

Question

(F/H5) Describe how you would use chromatography to identify the dyes in an unknown food colouring.

[Crossover — 4 marks]

4 marks · take your time before peeking.

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