CHEMISTRY-A-H032 · Cambridge OCR AS Level
CHEMISTRY-A-H032/21
Depth in Chemistry
Chemistry A - H032 · 2024 · Variant 1
Relative difficulty
Analysis source: OCR
Analysis aligned to the official syllabus and assessment design.
3.0 / 5
140
180 min
Amount of substance
Cohort performance
Session statistics from official examination reports
Total marks
140
Duration
180 min
Session difficulty
3.0 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations.
While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2 (Depth) pushes students into multi-step calculations, graphical analyses, and qualitative reasoning.
Achieving top grades required a fine balance of mathematical precision, rigorous scientific vocabulary, and neat, unambiguous diagrammatic representations.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Quantitative /
Weight: 7100%Logical / Scientific
Weight: 686%Chemical Equations
Weight: 457%Drawing
Weight: 343%Recall /
Weight: 229%Practica
Weight: 114%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Examiner report — national grade boundaries and question-level commentary
Level A
Approx. 84% of maximum mark
Level B
Approx. 74% of maximum mark
Level C
Approx. 65% of maximum mark
Level D
Approx. 56% of maximum mark
Level E
Approx. 46% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Give reasons and link mechanism to outcome; each point needs a because/so chain.
Show formula, substitution, and unit; method marks need visible working.
Match the expected response style for “State” questions.
Match the expected response style for “Draw” questions.
Match the expected response style for “Complete” questions.
Match the expected response style for “Predict” questions.
Match the expected response style for “Write” questions.
Match the expected response style for “Outline” questions.
Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
Amount of substance
21 marks this session
Bonding and structure
20 marks this session
Enthalpy changes
13 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Amount of substance
Enthalpy changes
Bonding and structure
Amount of substance (Atoms and reactions)
Reaction rates (Physical chemistry)
Bonding and structure (Electrons, bonding and structure)
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
H032/01 Breadth in chemistry: H032/02 Depth in chemistry:
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Amount of substance
21 marks this session
Practise in RevuiBonding and structure
20 marks this session
Practise in RevuiEnthalpy changes
13 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations.
- 2Message
While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2 (Depth) pushes students into multi-step calculations, graphical analyses, and qualitative reasoning.
- 3Message
Achieving top grades required a fine balance of mathematical precision, rigorous scientific vocabulary, and neat, unambiguous diagrammatic representations.
Teacher briefing pack
One-page session summary for tutors and classroom review
2024 2024
Chemistry A - H032
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations. While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations.
While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2 (Depth) pushes students into multi-step calculations, graphical analyses, and qualitative reasoning.
Achieving top grades required a fine balance of mathematical precision, rigorous scientific vocabulary, and neat, unambiguous diagrammatic representations.
- Total marks
- 140
- Duration
- 180 min
- Session difficulty
- 3.0 / 5
Session analysis
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations. While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2 (Depth) pushes students into multi-step calculations, graphical analyses, and qualitative reasoning. Achieving top grades required a fine balance of mathematical precision, rigorous scientific vocabulary, and neat, unambiguous diagrammatic representations.
Updated Jun 14, 2026
Paper breakdown
H032/01 Breadth in chemistry: H032/02 Depth in chemistry:
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
79% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Structured Short Answer
108·34·77%
Multiple Choice
20·20·14%
Level of Response
12·2·9%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
The halogens
85%85%
Group
280%80%
Acids
75%75%
Overall Difficulty Verdict
The 2024 H032 OCR Chemistry A papers present a moderate, fair challenge that aligns well with the revised AS Level expectations. While Paper 1 (Breadth) tests a wide range of foundational concepts with relatively straightforward multiple-choice and short-answer questions, Paper 2 (Depth) pushes students into multi-step calculations, graphical analyses, and qualitative reasoning. Achieving top grades required a fine balance of mathematical precision, rigorous scientific vocabulary, and neat, unambiguous diagrammatic representations.
Examiner notes & key calculations
- Titration Dilution Factor: In the ethanoic acid titration, many candidates failed to scale up from the 25.0 cm³ aliquot to the 250.0 cm³ volumetric flask (the "times 10" step), restricting their maximum score.
- Boltzmann Axes and Curve: When drawing the Boltzmann distribution, several students failed to start the curve at the origin or allowed it to touch the x-axis at high energy. Labeling the y-axis as "atoms" instead of "number of molecules" was also heavily penalized.
- Uncharged Spectrometry Fragments: In organic elucidation, writing fragment ions without a positive charge (e.g., CH3CO instead of CH3CO+) is a recurrent examiner pitfall.
- Bond Enthalpy Calculations: Omitting the negative sign or failing to apply the correct stoichiometry of the products led to widespread calculation errors in the hydrazine bond enthalpy question.
Exam tips
Paper format
- Duration
- 1h 30min
- Total marks
- 70
- Weighting
- 50%
- Question types
- Structured Short Answer, Level of Response
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.