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6.1 Improving processes and products

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Question 6

A manufacturer compares two materials used when making an electronic circuit.

MaterialParticle description
PAll the atoms are the same size and are arranged in regular layers.
QThe atoms are different sizes and the layers are not regular.

A batch of material Q contains 192 g of tin, 6 g of silver and 2 g of copper.

Which option identifies the material whose layers slide over each other less easily and gives the percentage by mass of copper in material Q?

[1]
A

Material Q; 1.0%

B

Material P; 96.0%

C

Material P; 1.0%

D

Material Q; 4.0%

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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