IB Chemistry SL · 2025

6.2 Electron transfer reactions

48 past paper questions from 17 papers across 4 exam sessions. See what repeats, then practise the same skills with AI marking.

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SL archive · 2025 to 2026

6.2 Electron transfer reactions

Latest exam session: May 2026

questions
questions
papers
papers
exam sessions
exam sessions
By year4micro-topics

Micro-topics in 6.2 Electron transfer reactions

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

  • 89

    6.2.1

    Oxidation states and identifying redox

    19 questions · in 89% of papers

    Frequently tested

    last May 26 P2 TZ3

  • 39

    6.2.2

    Half-equations and balancing redox

    7 questions · in 39% of papers

    Frequently tested

    last May 26 P2 TZ2

  • 22

    6.2.3

    The activity series and redox reactions

    4 questions · in 22% of papers

    Regular

    last May 26 P1 TZ1

  • 61

    6.2.4

    Electrochemical cells

    18 questions · in 61% 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?

Questions per year for each micro-topic.

fewermore

Micro-topic20252026
6.2.1Oxidation states and identifying redoxFrequently tested
13Oxidation states and identifying redox, 2025: 13 questions6Oxidation states and identifying redox, 2026: 6 questions
6.2.4Electrochemical cellsFrequently tested
12Electrochemical cells, 2025: 12 questions6Electrochemical cells, 2026: 6 questions
6.2.2Half-equations and balancing redoxFrequently tested
4Half-equations and balancing redox, 2025: 4 questions3Half-equations and balancing redox, 2026: 3 questions
6.2.3The activity series and redox reactionsRegular
3The activity series and redox reactions, 2025: 3 questions1The activity series and redox reactions, 2026: 1 question
  • 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 6.2 Electron transfer reactions, by exam session

Which papers asked about 6.2 Electron transfer reactions, 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 6.2 Electron transfer reactions?

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 17 papers in this archive.

Which 6.2 Electron transfer reactions topic comes up most?

Oxidation states and identifying redox (6.2.1): in 89% of papers, last seen May 26 P2 TZ3. Usually "Identify", worth about 1.4 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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