Skip to content

Course home

Sign up

8.1 Purity, formulations and chromatography

EasyMediumHard
1234567891011121314151617181920212223242526
Question 3
F

An ink, M, and three pure dyes, X, Y and Z, were run on the same chromatography paper in the same solvent.

Figure shows the chromatogram.

Figure: The chromatogram produced from ink M and from the three pure dyes X, Y and Z

image

a.

Use Figure.

Give the number of dyes in ink M.

[1]
b.

Use Figure.

Give the letters of the two pure dyes that are present in ink M.

[2]
c.

Explain how Figure shows that ink M is a mixture.

[1]
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.

Question bank