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1 markMetals, Non-Metals and Corrosion

CSEC Integrated Science · 2006 · Paper 2 · Question 1(b)(i)

A family moves to a new home by the beach, and the hinges of their metal gate begin to rust within two months.

Name the chemical process by which rusting takes place.

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Other parts of this question

  1. 1(a)(i)Complete the word equation for the reaction: Aluminium + hydrochloric acid ->[1 mark]
  2. 1(a)(ii)Complete the word equation for the reaction: Iron + water ->[1 mark]
  3. 1(b)(ii)Write a word equation for the formation of rust.[1 mark]
  4. 1(b)(iii)Explain why rusting of the gate has occurred so rapidly.[2 marks]
  5. 1(c)(i)State which of the three materials is likely to have been used in the windows of the bedroom.[1 mark]
  6. 1(c)(ii)State which of the three materials is likely to have been used in the windows of the kitchen.[1 mark]
  7. 1(c)(iii)Give reasons for your answers in (c)(i) and (c)(ii).[2 marks]
  8. 1(d)(i)Suggest what might have been responsible for the respiratory ailments.[1 mark]
  9. 1(d)(ii)Suggest what might have been responsible for the decline in frequency of the respiratory ailments.[1 mark]
  10. 1(e)(i)Using the experimental results in Table 1, write the metals in order of increasing activity.[1 mark]
  11. 1(e)(ii)Y is non-reactive in hydrochloric acid. Suggest the name of ONE metal which is non-reactive in hydrochloric acid.[1 mark]
  12. 1(e)(iii)Why was the same volume (5 cm³) of hydrochloric acid added to EACH of the three metals?[1 mark]

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