ZIMSEC O-Level Chemistry
Purification of water
Purification of water in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic19 practice questions1 lesson
Overview
Form 4 (competency matrix 8.34.1): filtration, flocculation, sedimentation and chlorination.
Learning objectives
What the syllabus expects you to be able to do.
- 7.4.3.4Describe the large-scale purification of water by filtration, flocculation, sedimentation and chlorination.
- 7.4.3.5Explain the roles of aluminium sulfate and chlorine in the treatment of water.
Lessons
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Treatment of the water supply
25 min
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Sample question
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