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O Level Chemistry 5070, topic 12.3

Chromatography: past paper questions

12 Cambridge O Level Chemistry 5070 questions on Chromatography (12.3) from 12 papers, 2023 to 2026. Mostly multiple choice. Open the paper or try a question free.

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Questions
12
Papers
12
Years
2023 to 2026
Total marks
22
Average per question
1.8 marks
Largest question
6 marks

By type: Multiple choice 10 · Structured 2

How hard the questions are

  • Recall1
  • Apply3
  • Analyse1
  • Not banded7

Derived from the command word Cambridge prints in each question, banded by a fixed table beside the syllabus's own definitions. A question printing no command word is unbanded: unknown, not middling.

Command words

  • calculateApply1 question

    work out from given facts, figures or information

  • drawApply1 question
  • explainAnalyse1 question

    set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence

  • findApply1 question
  • identifyRecall1 question

    name/select/recognise

  • measureApply1 question
  • nameRecall1 question
  • stateRecall1 question

    express in clear terms

  • suggestAnalyse1 question

    apply knowledge and understanding to situations where there are a range of valid responses in order to make proposals / put forward considerations

Where the questions come from

By year

  • 20263
  • 20253
  • 20242
  • 20234

By session

  • May/June8
  • Oct/Nov4

By paper

  • Paper 110
  • Paper 42

Questions on this topic

Showing 8 of 12, spread across the years. Open one to write your answer and have it marked.

  • Question 39May/June 2026, paper 11Multiple choice1 mark

    Chromatography is used to separate and identify dyes in a mixture.

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  • Question 39Oct/Nov 2023, paper 12Multiple choice1 markHas a diagram

    The diagram shows a chromatogram. Which spot has an Rf value of 0.75?

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  • Question 38May/June 2026, paper 12Multiple choice1 markHas a diagram

    The diagram represents a chromatogram of the colourless acids in a drink. The chromatogram has been treated with a locating agent.

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  • Question 39May/June 2024, paper 11Multiple choice1 markHas a diagram

    The chromatogram shown is produced using a spot of black ink placed at point X. Spot M is produced by a blue dye in the ink. What is the Rf value of this blue dye?

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  • Question 1May/June 2026, paper 41Structured6 marksHas a diagram

    Figure 1.1 shows the apparatus a student uses to investigate some dyes. A, B, C, D and M are dyes. The result for M is not shown.

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  • Question 37May/June 2025, paper 12Multiple choice1 markHas a diagram

    Four samples are analysed using paper chromatography. P, Q and R are pure substances. M is a mixture of different substances.

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  • Question 39May/June 2023, paper 12Multiple choice1 markHas a diagram

    The results of a paper chromatography experiment are shown. X is an aqueous solution of a salt of a Group I element. Y is an aqueous solution of a salt of a transition element.

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  • Question 1May/June 2023, paper 41Structured6 marksHas a diagram

    A student uses chromatography to separate the dyes in a food colouring. Fig. 1.1 shows the apparatus the student uses. Name apparatus X.

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