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6.1 Improving processes and products

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Question 17

A farm has several steel items that are exposed to air and water.

Three methods of preventing rust are labelled A, B and C.

LetterMethod
Apainting
Bcoating with plastic
Ccoating with oil

Complete the maintenance record by writing the correct letter beside each steel item. Use each letter once.

  • wire boundary fence around a field ............
  • pivoting hinge used to open a ventilation shutter ............
  • support columns of an open-sided barn ............
[3]
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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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