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ZIMSEC O-Level Chemistry

Redox reactions

Redox reactions in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Overview

Form 3 (competency matrix 8.7.1).

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.1.8.1Define oxidation and reduction in terms of electron transfer and of changes in oxidation number.
  2. 7.1.8.2Identify oxidising agents and reducing agents.

Lessons

  • Oxidation and reduction

    35 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Redox reactions: sample question

1 mark

True or false: in the reaction PbO+C→Pb+CO\ce{PbO + C -> Pb + CO}, lead(II) oxide is reduced.

Is the statement true or false?

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