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2 marksThe Atmosphere

CAPE Chemistry Unit 2 · 2007 · Paper 2 · Question 8(c)(i)

Explain why leaded compounds and carbon monoxide are considered pollutants.

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Other parts of this question

  1. 8(a)(i)State the name of the process used to separate crude oil into its various fractions.[1 mark]
  2. 8(a)(ii)Explain the physical basis on which the fractional separation of crude oil occurs.[2 marks]
  3. 8(b)(i)Explain how NO2 and SO2 are produced during the combustion of fossil fuels, illustrating with balanced equations.[6 marks]
  4. 8(b)(ii)State the environmental implications of releasing NO2 and SO2 into the atmosphere.[2 marks]
  5. 8(c)(ii)Explain the source of PbO and carbon monoxide in vehicular exhaust.[2 marks]
  6. 8(c)(iii)State ONE step taken to reduce the amount of lead pollution caused by vehicle fuel.[1 mark]
  7. 8(d)Suggest FOUR considerations that must be taken into account when choosing the location of an oil refinery.[4 marks]

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