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6.1 Improving processes and products

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Question 11

A company is considering three methods for extracting magnesium.

MethodProcess
PHeat magnesium oxide with carbon
QPass an electric current through magnesium chloride dissolved in water
RPass an electric current through molten magnesium chloride

Which method should the company use? Explain why this method can extract magnesium and why each of the other methods cannot.

[4]
Markscheme

6.1 Improving processes and products Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Improving processes and products

136 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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