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2 marksUses of Metals

CSEC Chemistry · January 2015 · Paper 2 · Question 5(b)(i)

Iron and its compounds are important in the manufacturing industry and in biological systems.

Suggest TWO reasons why the alloy, stainless steel, is preferred to pure iron when making cooking utensils.

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Other parts of this question

  1. 5(a)(i)State the name of the anhydride and describe how it is produced. (The conditions for the reactions are necessary but there is no need to write the equations.)[5 marks]
  2. 5(a)(ii)Using balanced chemical equations, with state symbols, explain how the anhydride is converted to sulfuric acid in the manufacturing process.[4 marks]
  3. 5(a)(iii)Suggest why the anhydride is NOT directly added to water to produce sulfuric acid.[2 marks]
  4. 5(b)(ii)In humans, iron is found in haemoglobin which is responsible for the transfer of oxygen throughout the body. Suggest how a lack of iron in the human diet could…[2 marks]

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