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8.1 Purity, formulations and chromatography

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Question 21

A conservation scientist ran a dye extracted from a historical textile on chromatography paper. Four trainees each calculated the Rf R_f\,Rf​ value of the dye from the same chromatogram, and each gave a different answer.

Which answer could be correct?

[1]
A

0.27

B

2.70

C

3.70

D

1.27

Markscheme

8.1 Purity, formulations and chromatography Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 Purity, formulations and chromatography

113 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.

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