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5 marksChlorine

CAPE Chemistry Unit 2 · May/June 2022 · Paper 2 · Question 3(d)

Describe the chemical processes involved in the production of chlorine and sodium hydroxide when the diaphragm cell is used. Your answer must include the types of reaction taking place and the equations representing the chemical reactions.

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Other parts of this question

  1. 3(a)Complete Table 2 by inserting the missing information in the blank spaces.[4 marks]
  2. 3(b)(i)Define the term 'catalytic cracking'.[2 marks]
  3. 3(b)(ii)Write a balanced equation to show the products of the cracking of decane, C₁₀H₂₂.[2 marks]
  4. 3(b)(iii)Explain the principles involved in the fractional distillation of crude oil.[3 marks]
  5. 3(b)(iv)Explain how ONE adverse effect of the petroleum industry can impact the environment.[3 marks]
  6. 3(c)(i)Define EACH of the following terms: Reuse, Recycle, Reduce.[3 marks]
  7. 3(c)(ii)Discuss how the concepts of reuse, recycle and reduce can be applied practically to glass waste.[3 marks]
  8. 3(e)(i)Describe the chemical changes which occur to produce hydrochloric acid.[2 marks]
  9. 3(e)(ii)Describe the chemical changes which occur to produce sodium hypochlorite (bleach).[1 mark]
  10. 3(e)(iii)TWO modifications that could be made to the structure of the electrolytic cell to ensure that these chemical changes in (e)(ii) do not occur.[2 marks]

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