IB Chemistry SL · 2025
2.4 From models to materials
8 past paper questions from 7 papers across 3 exam sessions. See what repeats, then practise the same skills with AI marking.
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SL archive · 2025 to 2026
2.4 From models to materials
Latest exam session: May 2026
- questions
- 8
- questions
- papers
- 7
- papers
- exam sessions
- 3
- exam sessions
- micro-topics
- 2
Micro-topics in 2.4 From models to materials
In syllabus order. The ring is the share of papers each appears in.
2.4.1
The bonding continuum and the bonding triangle
2 questions · in 20% of papersAppears in 2 of the 10 Chemistry SL papers analysed (20%), at least once each.
Regularlast May 25 P2 TZ2
2.4.2
6 questions · in 50% of papersAppears in 5 of the 10 Chemistry SL papers analysed (50%), at least once each.
Frequently testedlast May 26 P2 TZA
Exam pattern
How often each micro-topic has been examined, year by year. Each label is explained under the grid.
Does it repeat?
Questions per year for each micro-topic.
fewermore
| Micro-topic | 2025 | 2026 |
|---|---|---|
| 5Alloys and polymers, 2025: 5 questions | 1Alloys and polymers, 2026: 1 question | |
| 2The bonding continuum and the bonding triangle, 2025: 2 questions | ·The bonding continuum and the bonding triangle, 2026: 0 questions |
- Frequently testedin at least a quarter of all papers, and still appearing in the last two years
- Regularin roughly one paper in six or more
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Questions on 2.4 From models to materials, by exam session
Which papers asked about 2.4 From models to materials, and which question numbers. Open a paper to see them highlighted.
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Frequently asked questions
Short answers about this page.
Which Chemistry SL exam sessions are covered for 2.4 From models to materials?
3 exam sessions from 2025 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full, which gives 7 papers in this archive.
Which 2.4 From models to materials topic comes up most?
Alloys and polymers (2.4.2): in 50% of papers, last seen May 26 P2 TZA. Usually "identify", worth about 1.2 marks in a paper that includes it.
Can I see the original question and mark scheme?
No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.
What do "banker", "due" and "rising" mean?
Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.
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