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8.1 Purity, formulations and chromatography

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Question 1
F

A student wants to use paper chromatography to separate the dyes in an ink.

Figure shows some of the equipment the student will use.

Figure: The beaker of solvent the student will use for paper chromatography, before the chromatography paper has been added

image

a.

Complete Figure to show how the student should set up the equipment. You should draw and label:

  • the chromatography paper hanging from the glass rod

  • the start line on the paper

  • one spot of ink on the start line.

[3]
b.

Explain why the start line must be drawn in pencil.

[2]
Markscheme

8.1 Purity, formulations and chromatography Questions

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

40 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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