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ZIMSEC A-Level Chemistry

6.1.6.4Electrolytic purification of copper/nickel; extraction of aluminium; production of chlorine from brine

Electrolytic purification of copper/nickel; extraction of aluminium; production of chlorine from brine in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.6.4.1Describe the production of hydrogen, oxygen, aluminium, copper, nickel and chlorine by electrolysis.

Lessons

  • Industrial electrolysis: aluminium, chlorine and metal refining

    40 min

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Sample question

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Electrolytic purification of copper/nickel; extraction of aluminium; production of chlorine from brine: sample question

1 mark

Why must the carbon anodes be replaced regularly during aluminium extraction?

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