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O Level Chemistry 5070, topic 2.1

Elements, compounds and mixtures: past paper questions

11 Cambridge O Level Chemistry 5070 questions on Elements, compounds and mixtures (2.1) from 10 papers, 2023 to 2026. Mostly multiple choice. Open the paper or try a question free.

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Questions
11
Papers
10
Years
2023 to 2026
Total marks
11
Average per question
1 marks
Largest question
1 mark

By type: Multiple choice 11

How hard the questions are

  • Recall0
  • Apply0
  • Analyse0
  • Not banded11

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.

Where the questions come from

By year

  • 20262
  • 20253
  • 20243
  • 20233

By session

  • May/June6
  • Oct/Nov5

By paper

  • Paper 111

Questions on this topic

Showing 9 of 11, spread across the years. Open one to write your answer and have it marked.

  • Question 2May/June 2026, paper 11Multiple choice1 markHas a diagram

    In the diagrams, atoms of different elements are represented by different sizes of circle. Which diagram represents a mixture of nitrogen and argon?

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  • Question 3Oct/Nov 2025, paper 11Multiple choice1 markHas a diagram

    The main component of mineral X is calcium carbonate, CaCO3. X also contains tiny grains of silicon(IV) oxide, SiO2.

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  • Question 3Oct/Nov 2024, paper 11Multiple choice1 mark

    X and Y are both elements, one of which is a non-metal. 1 mole of X is added to 1 mole of Y and they are heated together. X and Y react completely to form substance Z. Substance Z cannot be easily separated to form X and Y. Three statements are given.

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  • Question 3Oct/Nov 2023, paper 11Multiple choice1 markHas a diagram

    Substances can be elements, compounds or mixtures. Which row is correct?

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  • Question 2May/June 2026, paper 12Multiple choice1 mark

    Which statement is correct?

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  • Question 2May/June 2025, paper 11Multiple choice1 markHas a diagram

    Sodium is added to water and a chemical reaction occurs. Hydrogen and aqueous sodium hydroxide are produced. Which row describes the reactants and products in this reaction?

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  • Question 2May/June 2024, paper 11Multiple choice1 markHas a diagram

    A sample of substance X contains iron and sulfur only. [Ar: Fe, 56; S, 32] In which row is it possible for both statements about X to be correct?

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  • Question 2May/June 2024, paper 12Multiple choice1 mark

    What is tap water?

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  • Question 3Oct/Nov 2023, paper 12Multiple choice1 markHas a diagram

    W is ethene, X is air, Y is iodine and Z is brass. Which row is correct?

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