Question 5(a)
[Maximum number: 2]
This question is about metals and metal compounds.
The method used to extract a metal depends on the reactivity of the metal.
Explain which method is used to extract sodium metal from sodium chloride.
Edexcel IGCSE Chemistry 2.23C metal extraction methods
Practise extraction-method questions by deciding from series position whether carbon can reduce an oxide or electrolysis is needed.
How this is tested
- Choose carbon extraction for oxides of metals below carbon in the reactivity series.
- Explain why aluminium or sodium needs electrolysis because carbon cannot displace it.
- Use the reactivity series to justify whether heating an oxide with carbon will work.