GCSE Chemistry – Electrolysis of aluminium

Last updated: 13/04/2020
GCSE Science CIE – Combined science extended Metals GCSE Chemistry – Electrolysis of aluminium

Learning Objectives

-I can describe the process of extracting aluminium by electrolysis

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  1. Current
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  3. Answered

  1. What is the definition of electrolysis?

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  2. What is needed to carry out electrolysis?

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  3. What is the anode?

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  4. What is the cathode?

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  5. Which part of the electrolysis cell is the carbon negative electrode?

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  6. Which is a use of aluminium?

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  7. Which is a use of aluminium?

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  8. Which is a use of aluminium?

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  9. What is the name of an aluminium ore?

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  10. What does bauxite mainly contain?

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  11. What is the formula of aluminium oxide?

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  12. What method can be used to extract aluminium from its ore?

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  13. Why is the process of electrolysis needed to extract aluminium from its ore rather than using displacement?

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  14. What type of aluminium is used during electrolysis?

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  15. What must be done to the aluminium oxide before it can undergo electrolysis?

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  16. What must be done to the aluminium oxide before it can undergo electrolysis?

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  17. Describe the amount of energy that is needed to carry out the electrolysis of extracting aluminium.

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  18. Describe the amounts of electricity used during the electrolysis of aluminium.

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  19. Describe the melting point of aluminium oxide.

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  20. During electrolysis, what is the aluminium oxide mixed with to decrease the melting point?

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  21. Why can’t the aluminium oxide be melted singularly during electrolysis?

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  22. What is formed at the positive electrode?

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  23. What is formed at the negative electrode?

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  24. What gas is produced at the anode?

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  25. What is tapped off during the electrolysis of aluminium oxide?

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