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ZIMSEC A-Level Chemistry

6.2.4Chemistry of Group VII Elements

Chemistry of Group VII Elements in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Topic71 practice questions3 lessons

Overview

Form 5.

In this topic

Lessons

  • The halogens: physical properties, bond strength and oxidising power

    45 min

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  • Halide ions: reducing power, silver nitrate and concentrated sulfuric acid

    45 min

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  • Chlorine: disproportionation, water treatment and uses of the halogens

    40 min

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Sample question

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

Chemistry of Group VII Elements: sample question

1 mark

Why is the reaction Cl₂ + 2OH⁻ → Cl⁻ + ClO⁻ + H₂O described as disproportionation?

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