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CAPE Chemistry Unit 2 · 2017 · Paper 2 · Question 3(a)(i)

State the reason why the presence of ozone in the stratosphere is beneficial to humans.

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  1. 3(a)(ii)Write the relevant equations showing the formation of ozone in the stratosphere.[4 marks]
  2. 3(b)(i)List TWO harmful effects of tropospheric ozone on humans.[2 marks]
  3. 3(b)(ii)Describe, with relevant equations, the production of tropospheric ozone resulting from the use of internal combustion engines.[3 marks]
  4. 3(c)Complete Table 1 by inserting the relevant test and inferences to identify the pollutants.[5 marks]

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