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2 marksUses of Metals

CSEC Chemistry · January 2020 · Paper 2 · Question 6(b)(i)

Aluminium is used in alloys due to its corrosion resistance.

State ONE alloy of aluminium and its use.

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Other parts of this question

  1. 6(a)(i)State the TWO conditions necessary for the corrosion of a metal.[2 marks]
  2. 6(a)(ii)State whether corrosion will occur for EACH of the test tubes shown in Figure 2. Give ONE reason to support your answer in EACH case. Test tube A, Test tube B,…[6 marks]
  3. 6(a)(iii)Suggest the reason why the boiled water was covered with oil in Test tube B.[1 mark]
  4. 6(b)(ii)Explain why the corrosion of aluminium is beneficial.[2 marks]
  5. 6(b)(iii)Write a balanced equation to show the product formed when aluminium is left exposed to air.[2 marks]

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