November Chemistry mocks reward organised practice more than last-minute memorisation. Effective IB Chemistry mock exam prep combines a precise coverage list, active recall, targeted questions, error correction, and timed paper practice.
First, ask your teacher exactly which syllabus content and papers will be assessed. A school mock is not an official IB examination, so its coverage, length, and weighting may differ from the final assessment.
Know the IB Chemistry exam structure
The current IB Chemistry course, first assessed in 2025, is organised around Structure and Reactivity. The former option topics have been removed, while conceptual connections, data analysis, experimental work, and applying chemistry in unfamiliar contexts receive greater emphasis.
The official external assessment has two papers:
| Component | SL format | HL format |
|---|---|---|
| Paper 1 | 1 hour 30 minutes, 55 marks | 2 hours, 75 marks |
| Paper 1A | 30 multiple-choice questions | 40 multiple-choice questions |
| Paper 1B | Data-based and experimental questions | Data-based and experimental questions |
| Paper 2 | 1 hour 30 minutes, 50 marks | 2 hours 30 minutes, 90 marks |
| Paper 2 style | Short-answer and extended-response questions | Short-answer and extended-response questions, including HL content |
Calculators and the current Chemistry data booklet are permitted in both papers. Paper 1A and Paper 1B are completed within one continuous Paper 1 session. The official IB Chemistry specimen papers demonstrate the current layout and question style.
Your school may set one paper, reduce the examination time, or assess selected topics. Treat the official format as your long-term target, but follow the instructions for your mock.
Start with a mock coverage audit
Create a checklist from your teacher's coverage notice and the current syllabus. The RevisionDojo IB Chemistry notes organise content by Structure and Reactivity, helping you identify what has been taught.
Label each assessed subtopic:
- Green: you can explain it and answer questions independently.
- Amber: you understand the material but make application errors.
- Red: you cannot explain the central model or method.
Test yourself before assigning a colour. Do not mark stoichiometry green because your notes seem familiar. Attempt a limiting-reactant calculation without support, including the equation, mole ratio, units, and significant figures.
Prioritise red topics that support several areas. Mole calculations, bonding, energetics, equilibrium, acids and bases, redox, and organic representations provide methods used across many questions. The topic-by-topic Chemistry revision guide maps these connections.
A focused four-week November mock plan
This plan assumes 60-90 minutes on weekdays and one longer weekend session. Adjust the number of topics rather than removing practice or correction.
| Week | Main objective | What to do |
|---|---|---|
| Week 1 | Diagnose and rebuild | Confirm coverage, complete a mixed diagnostic, classify errors, and repair two priority topics. |
| Week 2 | Strengthen application | Practise calculations, explanations, data analysis, and experimental questions by topic. |
| Week 3 | Add time pressure | Complete Paper 1A sets, Paper 1B tasks, and timed Paper 2 sections. |
| Week 4 | Simulate and refine | Sit a mock, mark it strictly, repair recurring errors, and reduce workload before the exam. |
Week 1: diagnose before revising
Complete a mixed question set without notes. Record lost marks under knowledge, method, data interpretation, communication, or carelessness.
Rebuild the two weakest foundational areas. Read a concise explanation, close it, reproduce the key ideas from memory, and answer 5-10 questions. Passive note review should occupy no more than about one-third of a session.
Week 2: train the main question types
Alternate between quantitative and explanatory work. Calculation practice might cover amount of substance, calorimetry, equilibrium, pH, or electrochemistry, depending on your mock coverage. Explanations should use precise causal links, such as connecting nuclear charge and shielding to a periodic trend.
Use the IB Chemistry past-paper video library only after attempting questions. Review incorrect answers and correct guesses, then redo each question without looking at the solution.
Week 3: mix topics under timed conditions
Paper 1A requires efficient decisions, but speed should develop from secure reasoning. When marking multiple-choice work, explain why the correct option works and why your selected distractor does not.
For Paper 1B, practise interpreting tables, graphs, uncertainties, and experimental procedures. For Paper 2, show substitutions, units, equations, and intermediate reasoning because these may earn marks even when the final answer is wrong.
Complete at least two timed sections. Use your permitted calculator and a clean IB Chemistry data booklet resource so finding constants, equations, and spectral information becomes automatic.
Week 4: complete a realistic simulation
Sit one full paper under your school's conditions. Put away notes and your phone, observe the time limit, and do not check answers until the end. Current-format Chemistry predicted and mock papers provide additional practice, but they do not forecast specific examination questions.
Mark strictly and calculate scores by topic and error type. Correct the weakest patterns, then reattempt selected questions 24-48 hours later. Several full papers completed without analysis will not automatically resolve an underlying misunderstanding.
Build an error log that changes your next action
For each mistake, record the topic, what went wrong, the correct principle, and your next task. If you reversed a mole ratio, for example, note that coefficients provide the mole ratio and that the known quantity must first be converted into moles. Then attempt a similar problem independently.
Jojo AI can clarify why a method fails, while a targeted Questionbank can provide another question on the same skill. The RevisionDojo Chemistry self-study guide explains how notes, recall, questions, feedback, and delayed retries work together.
Exam technique students often overlook
Learn the command terms used by your teacher. State generally needs a concise answer, explain requires linked reasoning, and determine requires a supported result. Writing everything you remember can consume time without earning marks.
During the mock:
- Scan the paper before starting.
- Keep units through calculations and check significant figures.
- Draw structures clearly, including charges and relevant electron pairs.
- Refer explicitly to graph values and chemical evidence.
- Move on if one question consumes disproportionate time.
- Attempt every multiple-choice question because incorrect answers receive no penalty in the official format.
During the final 24 hours, review error rules, definitions, reaction patterns, and data-booklet locations. Protect sleep rather than completing another full paper, since accurate chemical reasoning depends on concentration.
Conclusion
Strong IB Chemistry mock exam prep starts with confirmed school coverage and an honest diagnostic. Rebuild weak concepts, apply them through targeted questions, practise each paper style, and analyse every timed simulation.
RevisionDojo can support this process through Chemistry Study Notes, Jojo AI, the Questionbank, worked videos, and Mock Exams. Begin with your weakest assessed topic, then progress toward a timed paper and careful correction.
Sources and referenced URLs
- Official IB Chemistry course updates
- Official IB Chemistry subject brief
- Official IB Chemistry specimen papers and markschemes
- RevisionDojo IB Chemistry Study Notes
- RevisionDojo Chemistry topic-by-topic guide
- RevisionDojo IB Chemistry past-paper videos
- RevisionDojo IB Chemistry data booklet resource
- RevisionDojo Chemistry predicted and mock papers
- RevisionDojo Chemistry self-study resources
