Extraction of aluminium

This lesson will look at how electrolysis is used to extract metals from their ore, focussing on the extraction of aluminium from bauxite.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.(Revision) Four different metals were reacted with acid and the temperature increase was recorded. Each time 25cm³ of 1 mol/dm³ of sulfuric acid was used. Which is an example of a control variable in this experiment?

1/7

Q2.(Revision) When making a salt from an insoluble base. Why must the base be added in excess?

2/7

Q3.What does electrolysis mean?

3/7

Q4.What is the name of the negative electrode in electrolysis?

4/7

Q5.Why does the electrolyte in electrolysis need to be molten or dissolved?

5/7

Q6.What charged ions do non-metals form?

6/7

Q7.What would be the correct products of the electrolysis of molten magnesium bromide?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.(Revision) Four different metals were reacted with acid and the temperature increase was recorded. Each time 25cm³ of 1 mol/dm³ of sulfuric acid was used. Which is an example of a control variable in this experiment?

1/7

Q2.(Revision) When making a salt from an insoluble base. Why must the base be added in excess?

2/7

Q3.What does electrolysis mean?

3/7

Q4.What is the name of the negative electrode in electrolysis?

4/7

Q5.Why does the electrolyte in electrolysis need to be molten or dissolved?

5/7

Q6.What charged ions do non-metals form?

6/7

Q7.What would be the correct products of the electrolysis of molten magnesium bromide?

7/7

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Extraction of Aluminium

This quiz will assess your learning on this lesson and previous lessons in this unit.

Q1.(Revision) What salt will form from the reaction between sodium carbonate and nitric acid?

1/6

Q2.(Revision) What is being oxidised in the equation below?

2/6

Q3.Which electrode does aluminium form at during the electrolysis of aluminium oxide?

3/6

Q4.Why is electrolysis used to extract aluminium from aluminium oxide?

4/6

Q5.Why is aluminium oxide dissolved in cryolite during electrolysis

5/6

Q6.Why does the anode need replacing during the electrolysis of aluminium oxide?

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Extraction of Aluminium

This quiz will assess your learning on this lesson and previous lessons in this unit.

Q1.(Revision) What salt will form from the reaction between sodium carbonate and nitric acid?

1/6

Q2.(Revision) What is being oxidised in the equation below?

2/6

Q3.Which electrode does aluminium form at during the electrolysis of aluminium oxide?

3/6

Q4.Why is electrolysis used to extract aluminium from aluminium oxide?

4/6

Q5.Why is aluminium oxide dissolved in cryolite during electrolysis

5/6

Q6.Why does the anode need replacing during the electrolysis of aluminium oxide?

6/6

Lesson summary: Extraction of aluminium

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