O Level Chemistry 5070, topic 1.2
Diffusion: past paper questions
12 Cambridge O Level Chemistry 5070 questions on Diffusion (1.2) from 12 papers, 2023 to 2026. Mostly multiple choice. Open the paper or try a question free.
Practising builds a set from this topic, free with an account. One question opens straight away, with no account.
- Questions
- 12
- Papers
- 12
- Years
- 2023 to 2026
- Total marks
- 42
- Average per question
- 3.5 marks
- Largest question
- 9 marks
By type: Multiple choice 8 · Structured 4
How hard the questions are
- Recall0
- Apply0
- Analyse4
- Not banded8
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
- describeApply4 questions
state the points of a topic / give characteristics and main features
- explainAnalyse4 questions
set out purposes or reasons / make the relationships between things clear / say why and/or how and support with relevant evidence
- completeApply2 questions
- stateRecall2 questions
express in clear terms
- suggestAnalyse2 questions
apply knowledge and understanding to situations where there are a range of valid responses in order to make proposals / put forward considerations
- calculateApply1 question
work out from given facts, figures or information
- constructApply1 question
Where the questions come from
By year
- 20261
- 20253
- 20244
- 20234
By session
- May/June7
- Oct/Nov5
By paper
- Paper 18
- Paper 24
Questions on this topic
Showing 10 of 12, spread across the years. Open one to write your answer and have it marked.
- Try this questionQuestion 1May/June 2026, paper 12Multiple choice1 markHas a diagram
The melting and boiling points of four substances are shown.
- Try this questionQuestion 2Oct/Nov 2025, paper 11Multiple choice1 mark
Which substance would diffuse most quickly?
- Try this questionQuestion 2Oct/Nov 2024, paper 11Multiple choice1 mark
When measured under the same conditions of temperature and pressure, which gas diffuses at the same rate as nitrogen?
- Try this questionQuestion 2Oct/Nov 2023, paper 11Multiple choice1 markHas a diagram
Data about two compounds is given. Both compounds have a simple molecular structure.
- Try this questionQuestion 1May/June 2025, paper 11Multiple choice1 markHas a diagram
Four gases are listed. 1 2 3 4 What is the order of their rate of diffusion at room temperature and pressure?
- Try this questionQuestion 1Oct/Nov 2024, paper 12Multiple choice1 mark
Helium gas and argon gas are mixed in a closed container at room temperature and pressure (r.t.p.). What happens when the two gases are in the container?
- Try this questionQuestion 7May/June 2024, paper 21Structured9 marks
Chlorine is a gas at room temperature. Iodine is a solid at room temperature. A sample of chlorine has a volume of at room temperature and pressure.
- Try this questionQuestion 9May/June 2023, paper 21Structured8 marks
Oxides of nitrogen such as nitrogen monoxide, NO, are atmospheric pollutants. The exhaust gas from a car engine contains 0.00200% by volume of nitrogen monoxide.
- Try this questionQuestion 7May/June 2024, paper 22Structured9 marks
Oxygen is a gas at room temperature. Sulfur is a solid at room temperature. A sample of oxygen has a volume of at room temperature and pressure.
- Try this questionQuestion 2May/June 2023, paper 22Structured8 marks
Group VII includes the elements fluorine, chlorine, bromine and iodine. Chlorine is a green gas at room temperature and pressure. State the appearance of iodine at room temperature and pressure.