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6.1 Improving processes and products

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Question 49
F

Metal R reacts vigorously with dilute hydrochloric acid.

Heating the oxide of R with carbon does not produce any R.

Which method should be used to extract R from its compounds, and why?

[1]
A

Electrolysis of an aqueous solution of its compound, because R is more reactive than carbon.

B

Heating its oxide with carbon at a much higher temperature, because R is less reactive than carbon.

C

Electrolysis of its molten compound, because R is less reactive than carbon.

D

Electrolysis of its molten compound, because R is more reactive than carbon.

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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