ZIMSEC O-Level Chemistry
Alkanes and alkenes
Alkanes and alkenes in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic60 practice questions3 lessons
Overview
Form 4 (competency matrix 8.28.1).
Learning objectives
What the syllabus expects you to be able to do.
- 7.3.3.1Describe the manufacture of alkanes and alkenes, including the cracking of long-chain alkanes.
- 7.3.3.2Distinguish between alkanes and alkenes, for example with bromine water.
- 7.3.3.3Describe the chemical properties of alkanes as shown by methane: combustion and reaction with chlorine in ultraviolet light and in the dark.
- 7.3.3.4Describe the chemical properties of alkenes as shown by ethene: combustion and reactions with bromine water, steam and hydrogen.
Lessons
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Alkanes
30 min
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Alkenes and addition reactions
30 min
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Cracking
30 min
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Sample question
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