Using Electrolysis to Extract Metals (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
Why is electrolysis used to extract aluminium?
Why is electrolysis used to extract aluminium?
Aluminium is too reactive for carbon reduction
What is the name of the primary ore of aluminium?
What is the name of the primary ore of aluminium?
Bauxite
What is the chemical formula of bauxite?
What is the chemical formula of bauxite?
Why is cryolite added to bauxite?
Why is cryolite added to bauxite?
To lower the melting point
What type of electrodes are used in aluminium extraction?
What type of electrodes are used in aluminium extraction?
Graphite electrodes
Which ions are attracted to the cathode?
Which ions are attracted to the cathode?
Aluminium ions ()
What happens to ions at the cathode?
What happens to ions at the cathode?
They gain electrons
What happens to the molten aluminium produced?
What happens to the molten aluminium produced?
It sinks to the bottom
Which ions are attracted to the anode?
Which ions are attracted to the anode?
Oxide ions ()
What gas is primarily produced at the anode?
What gas is primarily produced at the anode?
Oxygen gas
What else can be produced at the anode?
What else can be produced at the anode?
Carbon dioxide