0620 · June 2024
Chemistry
Candidates found this to be an accessible paper overall. Candidates found Questions 7, 15, 27 and 37 to have the least challenge.
Source: Cambridge International
Cohort performance
Session statistics from official examination reports
No data available in official reports
Key examiner messages
Top priorities from the principal examiner before you revise
Candidates should read each question carefully so they answer the question being asked.
Candidates would benefit from learning the syllabus definitions of chemical terms, processes and qualitative chemical tests in particular.
Interpretation of data and the prediction of physical properties using data was generally accurate.
Candidates should check they have answered all the questions on the paper, particularly those which require them to add to a diagram or graph and therefore do not have a specific answer line.
Question difficulty map
How candidates performed on each question in this series
0620/11
Multiple Choice (Core)
0620/12
Multiple Choice (Core)
0620/13
Multiple Choice (Core)
0620/21
Multiple Choice (Extended)
0620/22
Multiple Choice (Extended)
0620/23
Multiple Choice (Extended)
0620/31
Theory (Core)
Assessment objectives
Skill and AO weighting from official examiner commentary
No data available in official reports
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
No data available in official reports
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
No data available in official reports
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
No data available in official reports
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
Trap: C
Option C was the most commonly chosen, suggesting that candidates recalled the relative charge and location of an electron but not its relative mass.
Trap: B
Option B was the most commonly chosen incorrect answer where candidates confused the direction of energy transfer.
Trap: C
Option C was the most commonly chosen option where candidates confused the relative melting points of two different oxides.
Trap: B
Option B was the most commonly chosen incorrect answer.
Trap: D
Option D was most commonly chosen.
Trap: B
Most candidates recognised that the gas with the greater Mr would take longer to travel down the tube.
Trap: B
To calculate 32.2%, candidates did not make any attempt to use the equation or the moles of reactants and products or to use a simple ratio.
Trap: B
Some candidates confused the role of zinc in sacrificial corrosion and assumed it promoted rusting rather than protected the iron.
Trap: B
Option B was the most commonly chosen option overall.
Trap: B
Few chose options C or D whereas option B was most commonly chosen, suggesting some confusion about the term ‘empirical formula’ compared with ‘molecular formula’.
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Reversible reactions and equilibrium
Electrolysis
Atomic structure and the Periodic Table
Rate of reaction
Preparation of salts
Group VII properties
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
No data available in official reports
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
Q3
Review MCQ trap (C)
Practise in RevuiQ16
Review MCQ trap (B)
Practise in RevuiQ19
Review MCQ trap (C)
Practise in RevuiQ29
Review MCQ trap (B)
Practise in RevuiQ13
Review MCQ trap (D)
Practise in RevuiQ10
Review MCQ trap (B)
Practise in RevuiQ31
Review MCQ trap (B)
Practise in RevuiQ35
Review MCQ trap (B)
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
Candidates should read each question carefully so they answer the question being asked.
- 2Message
Candidates would benefit from learning the syllabus definitions of chemical terms, processes and qualitative chemical tests in particular.
- 3Message
Interpretation of data and the prediction of physical properties using data was generally accurate.
- 4Message
Candidates should check they have answered all the questions on the paper, particularly those which require them to add to a diagram or graph and therefore do not have a specific answer line.
Teacher briefing pack
One-page session summary for tutors and classroom review
June 2024 2024
Chemistry
Cambridge International General Certificate of Secondary Education 0620 Chemistry June 2024 Principal Examiner Report for Teachers © 2024 CHEMISTRY Paper 0620/11 Multiple Choice (Core) Question Number Key Question Number Key Question Number Key Question Number Key 1 D 11 D 21 A 3
Candidates should read each question carefully so they answer the question being asked.
Candidates would benefit from learning the syllabus definitions of chemical terms, processes and qualitative chemical tests in particular.
Interpretation of data and the prediction of physical properties using data was generally accurate.
Examiner insights
General comments
- •Candidates found this to be an accessible paper overall.
- •Candidates found Questions 7, 15, 27 and 37 to have the least challenge.
- •Questions 9, 10, 11, 12, 16, 32 and 40 were most demanding.
- •Candidates found it difficult to recall the direction of energy movement in endothermic or exothermic reactions as well as expected observations during reactions.