IB Chemistry HL 3.2.3 Periodic trends in redox Question Bank
Practise IB Chemistry HL 3.2.3 by applying periodic trends in redox to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Chemistry HL
- Level
- HL
Exam points
- identify the relevant chemical structure, process or evidence
- apply the correct chemical model or equation
- evaluate the result using chemical reasoning and data
3.2.3—Periodic trends in redox question 1
[Maximum number: 2]
Bleaches in which chlorine is the active ingredient are the most common, although some environmental groups have concerns about their use.
Outline, with the help of a chemical equation, why this reaction occurs.
chlorine more reactive/more powerful oxidizing agent (than bromine);
Marking guidance:
Accept opposite statements for bromine.
Accept "chloride ion a weaker reducing agent" / "bromide ion a stronger reducing agent".
Accept "chlorine more electronegative than bromine".
Ignore state symbols.
Do not accept with equilibrium sign.
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