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6.1 Transition metals, alloys and corrosion

6.1 Transition metals, alloys and corrosion

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Question 1

An engineering firm is designing components for a luxury marine yacht. They need to choose materials for five specific components:

  1. Decorative fittings: Wear-resistant interior fittings (such as door handles and marine locks) that must resist corrosion.
  2. Heavy-duty cutting tools: Structural rig components requiring extreme hardness and strength.
  3. Electrical contacts: High-quality electrical contacts and wiring for the onboard control systems.
  4. Structural hull plating: Corrosion-resistant plating for the hull and superstructure that must remain highly lightweight.
  5. Decorative emblems: Intricately designed luxury jewellery and emblems that must resist tarnishing while retaining mechanical durability.

The engineers are considering the following five materials:

  • Brass
  • High-carbon steel
  • Pure copper
  • Aluminium alloys
  • 18-carat gold

Assign each of these five materials to its most suitable application. For each material, explain how its physical/chemical properties and metallic structure (including whether it is a pure metal or an alloy) make it uniquely suited to that role.

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Markscheme

6.1 Transition metals, alloys and corrosion Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Transition metals, alloys and corrosion

97 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.

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