IB Chemistry SL · 2025

2.2 The covalent model

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SL archive · 2025 to 2026

2.2 The covalent model

Latest exam session: May 2026

questions
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exam sessions
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By year5micro-topics

Micro-topics in 2.2 The covalent model

In syllabus order. The ring is the share of papers each appears in.

  • 61

    2.2.1

    Covalent bonding and Lewis structures

    15 questions · in 61% of papers

    Frequently tested

    last May 26 P1 TZ2

  • 67

    2.2.2

    Molecular shapes (VSEPR)

    12 questions · in 67% of papers

    Frequently tested

    last May 26 P2 TZ3

  • 33

    2.2.3

    Bond polarity and electronegativity

    6 questions · in 33% of papers

    Frequently tested

    last May 26 P1 TZ1

  • 22

    2.2.4

    Covalent network structures

    4 questions · in 22% of papers

    Regular

    last May 26 P1 TZ3

  • 78

    2.2.5

    Intermolecular forces and physical properties

    17 questions · in 78% of papers

    Frequently tested

    last May 26 P2 TZ3

Exam pattern

How often each micro-topic has been examined, year by year. Each label is explained under the grid.

Does it repeat?

Top 4 of 5 micro-topics for the next sitting. Numbers are questions per year.

fewermore

Micro-topic20252026
2.2.5Intermolecular forces and physical propertiesFrequently tested
11Intermolecular forces and physical properties, 2025: 11 questions6Intermolecular forces and physical properties, 2026: 6 questions
2.2.2Molecular shapes (VSEPR)Frequently tested
7Molecular shapes (VSEPR), 2025: 7 questions5Molecular shapes (VSEPR), 2026: 5 questions
2.2.1Covalent bonding and Lewis structuresFrequently tested
13Covalent bonding and Lewis structures, 2025: 13 questions2Covalent bonding and Lewis structures, 2026: 2 questions
2.2.3Bond polarity and electronegativityFrequently tested
5Bond polarity and electronegativity, 2025: 5 questions1Bond polarity and electronegativity, 2026: 1 question

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  • Frequently testedin at least a quarter of all papers, and still appearing in the last two years

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Questions on 2.2 The covalent model, by exam session

Which papers asked about 2.2 The covalent model, 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 2.2 The covalent model?

4 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 18 papers in this archive.

Which 2.2 The covalent model topic comes up most?

Intermolecular forces and physical properties (2.2.5): in 78% of papers, last seen May 26 P2 TZ3. Usually "Explain", worth about 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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