Aluminium extraction (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the name of the ore from which aluminium is extracted?
What is the name of the ore from which aluminium is extracted?
Bauxite
What compound makes up most of bauxite ore?
What compound makes up most of bauxite ore?
Aluminium oxide
What process is used to extract aluminium from aluminium oxide?
What process is used to extract aluminium from aluminium oxide?
Electrolysis
Why is cryolite mixed with aluminium oxide during extraction?
Why is cryolite mixed with aluminium oxide during extraction?
To lower the melting point
At which electrode does pure aluminium form during electrolysis?
At which electrode does pure aluminium form during electrolysis?
Cathode (negative)
What substance forms at the anode during aluminium extraction?
What substance forms at the anode during aluminium extraction?
Oxygen gas
Why can't carbon be used to displace aluminium from its compounds?
Why can't carbon be used to displace aluminium from its compounds?
Aluminium is above carbon in series
Where is aluminium positioned in the reactivity series?
Where is aluminium positioned in the reactivity series?
Above carbon
Why do the carbon anodes need to be replaced regularly?
Why do the carbon anodes need to be replaced regularly?
They react with oxygen to form
What is the equation for the reaction that consumes the carbon anodes?
What is the equation for the reaction that consumes the carbon anodes?
Which key property makes aluminium useful for aerospace applications?
Which key property makes aluminium useful for aerospace applications?
Low density (light weight)
What material are both the anodes and cathode made from in aluminium extraction?
What material are both the anodes and cathode made from in aluminium extraction?
Carbon