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Electrolysis of Aluminium

Revise Electrolysis of Aluminium in Electrolysis for GCSE Chemistry with 21 exam-style questions and 14 flashcards. Use the notes, sample questions, and flashcards below to connect this topic to the rest of your GCSE revision plan.

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1

The Metal That Changed History

Introduction2

The Hall-Heroult Cell — Click to Explore

Diagram3

How It Works: Why Cryolite is Essential

How It Works4

Half Equations — Must Know!

Comparison5

The Hall-Héroult Process — Step by Step

How It Works6

Key Definitions

Definitions7

Key Facts to Memorise

Key Facts8

Common Misconceptions

Misconceptions9

Memory Aids

Memory Aid10

Exam Focus

Exam Focus11

Exam Tips for Electrolysis of Aluminium

Exam Tips12

Worked Model Answer

Exam Focus13

Knowledge Organiser: Electrolysis of Aluminium

Summary

Sample Flashcards

What does OIL RIG stand for?
Oxidation Is Loss (of electrons), Reduction Is Gain (of electrons). At the Anode = Oxidation (loss). At the Cathode = Reduction (gain).
Why do the carbon anodes need replacing regularly?
At 950°C, the oxygen produced at the anode reacts with the hot carbon: C + O₂ → CO₂. The carbon is gradually burned away, so the anodes must be replaced periodically.

Exam questions for Electrolysis of Aluminium

Why is aluminium extracted by electrolysis rather than by reduction with carbon?

  • A. Aluminium is less reactive than carbon
  • B. Aluminium is more reactive than carbon
  • C. Aluminium does not form ions
  • D. Carbon reacts with aluminium to form carbides
1 markfoundation

Explain why aluminium is extracted by electrolysis rather than by reduction with carbon.

2 marksstandard

Want more? See all GCSE Chemistry exam questions by paper with full model answers and mark schemes.

21

exam-style questions

14

revision flashcards

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