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Chlorine · CAPE Chemistry Unit 2

39 past-paper questions on Chlorine, part of Industry and the Environment, from every CAPE Chemistry Unit 2 paper on Quelpr.

Practise Chlorine
  1. 5(b)(ii)2 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Comment on the suggestion that chlorine can be produced by bubbling ozone through sea water.
  2. 6(a)9 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Explain how the temperature determines the products of the reaction between chlorine and aqueous sodium hydroxide, using equations to illustrate your answer.
  3. 6(b)8 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Use the given redox potential values to explain the similarities and differences in the behaviour of the halogens with the thiosulphate (S2O3 2-) ion.
  4. 6(c)3 marks· CAPE Chemistry Unit 2 · 2005 · Paper 2Describe how silver nitrate solution can be used to distinguish among the halide ions Cl-, Br- and I-.
  5. 2(a)(i)2 marks· CAPE Chemistry Unit 2 · 2006 · Paper 2Write a balanced equation for the reaction occurring when chlorine is bubbled through cold aqueous dilute sodium hydroxide.
  6. 2(b)(i)1 mark· CAPE Chemistry Unit 2 · 2006 · Paper 2State the observation when aqueous chlorine is added to aqueous potassium bromide and the mixture is shaken.
  7. 2(c)2 marks· CAPE Chemistry Unit 2 · 2006 · Paper 2Write an ionic equation for the reaction occurring in (b)(i).
  8. 7(b)(i)8 marks· CAPE Chemistry Unit 2 · 2006 · Paper 2Describe the reaction of EACH of the following substances with water: a) Sodium b) Magnesium c) Chlorine
  9. 7(b)(ii)2 marks· CAPE Chemistry Unit 2 · 2006 · Paper 2Write an equation for ONE of the reactions described in (b)(i).
  10. 1(a)(i)1 mark· CAPE Chemistry Unit 2 · 2007 · Paper 2Write the chemical equation for the equilibrium reaction between bromine and chlorine forming BrCl.
  11. 6(a)6 marks· CAPE Chemistry Unit 2 · 2007 · Paper 2Complete Table 4 by stating the type of bonding present in Na2O, MgO, Al2O3, AlCl3, SiCl4, and PCl5.
  12. 6(c)(ii)2 marks· CAPE Chemistry Unit 2 · 2007 · Paper 2Write a balanced equation for the reaction of SiCl4 with water.
  13. 6(c)(iii)2 marks· CAPE Chemistry Unit 2 · 2007 · Paper 2Write a balanced equation for the reaction of PCl5 with water.
  14. 7(f)4 marks· CAPE Chemistry Unit 2 · 2007 · Paper 2Explain why silicon tetrachloride (SiCl4) fumes and forms a white precipitate with water while carbon tetrachloride (CCl4) is immiscible with water, and write a balanced equation for the reaction occurring.
  15. 6(a)(i)3 marks· CAPE Chemistry Unit 2 · 2009 · Paper 2List THREE substances produced by the chlor-alkali industry.
  16. 6(a)(ii)6 marks· CAPE Chemistry Unit 2 · 2009 · Paper 2Describe the chemical processes involved in the production of TWO of the substances listed in (a)(i) using a diaphragm cell, including: a) type of chemical reaction taking place, b) equations representing the chemical…
  17. 6(b)3 marks· CAPE Chemistry Unit 2 · 2009 · Paper 2State THREE categories of compounds for which chlorine is used in their manufacture.
  18. Q341 mark · multiple choice· CAPE Chemistry Unit 2 · 2012 · Paper 1Which of the following products is NOT produced for commercial purposes by the electrolysis of concentrated brine?
  19. Q371 mark · multiple choice· CAPE Chemistry Unit 2 · 2012 · Paper 1In the electrolysis of brine using the diaphragm cell, two by-products are
  20. Q351 mark · multiple choice· CAPE Chemistry Unit 2 · 2013 · Paper 1In the manufacture of chlorine by the electrolysis of brine using the diaphragm cell, the anode is made of
  21. Q381 mark · multiple choice· CAPE Chemistry Unit 2 · 2013 · Paper 1For which TWO of the following industrial products is chlorine MOST widely used in their manufacture? I. Solvents II. Sodium chloride III. Polyvinylchloride IV. Chlorofluorocarbons
  22. Q341 mark · multiple choice· CAPE Chemistry Unit 2 · 2014 · Paper 1Item 34 refers to the manufacture of chlorine by the electrolysis of brine using the diaphragm cell. The anode is made up of
  23. Q351 mark · multiple choice· CAPE Chemistry Unit 2 · 2014 · Paper 1For which TWO of the following industrial products is chlorine MOST widely used during their manufacture? I. Solvents II. Sodium chloride III. Polyvinylchloride IV. Chlorofluorocarbons
  24. Q321 mark · multiple choice· CAPE Chemistry Unit 2 · 2015 · Paper 1The chlor-alkali industry is I. a redox process II. an electrolytic process III. necessary in making bleach.
  25. Q381 mark · multiple choice· CAPE Chemistry Unit 2 · 2015 · Paper 1Chlorine is the active component for swimming pool disinfectants, although it is a poisonous gas. Which of the following salts is used as a safe chlorine source?
  26. 6(a)6 marks· CAPE Chemistry Unit 2 · 2015 · Paper 2Using an appropriate annotated diagram, describe how chlorine can be produced through use of a diaphragm cell. Include the equations occurring at EACH electrode.
  27. 6(b)3 marks· CAPE Chemistry Unit 2 · 2015 · Paper 2Explain why there are health concerns associated with the use and disposal of the diaphragm cell.
  28. Q361 mark · multiple choice· CAPE Chemistry Unit 2 · 2016 · Paper 1Which of the following products is NOT produced for commercial purposes by the electrolysis of concentrated brine?
  29. Q381 mark · multiple choice· CAPE Chemistry Unit 2 · 2016 · Paper 1Chlorine is the active component for swimming pool disinfectants, although it is a poisonous gas. Which of the following salts is used as a safe chlorine source?
  30. Q361 mark · multiple choice· CAPE Chemistry Unit 2 · 2017 · Paper 1Item 36 refers to the manufacture of chlorine by the electrolysis of brine using the diaphragm cell. The anode is made up of
  31. Q371 mark · multiple choice· CAPE Chemistry Unit 2 · 2017 · Paper 1Chlorine is MOST widely used for the manufacture of
  32. Q411 mark · multiple choice· CAPE Chemistry Unit 2 · 2017 · Paper 1Chlorine can be produced by the diaphragm method and mercury cell electrolysis. Which of the following statements is/are true regarding the diaphragm cell method? I. It is less energy efficient. II. It is more energy…
  33. 3(a)(i)2 marks· Chemistry · Unit 2 Q3 3(a)(i)Write half-equations to represent the reactions taking place at the anode and cathode in the diaphragm cell.
  34. 3(a)(ii)1 mark· Chemistry · Unit 2 Q3 3(a)(ii)Deduce ONE reason why the anode in the diaphragm cell is NOT made of steel.
  35. 3(a)(iii)4 marks· Chemistry · Unit 2 Q3 3(a)(iii)Discuss TWO environmental concerns associated with EACH of the following: The production of chlorine using the diaphragm cell; The manufacture or use of PVC or CFCs.
  36. 3(d)5 marks· Chemistry · Unit 2 Q3 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…
  37. 3(e)(i)2 marks· Chemistry · Unit 2 Q3 3(e)(i)Describe the chemical changes which occur to produce hydrochloric acid.
  38. 3(e)(ii)1 mark· Chemistry · Unit 2 Q3 3(e)(ii)Describe the chemical changes which occur to produce sodium hypochlorite (bleach).
  39. 3(e)(iii)2 marks· Chemistry · Unit 2 Q3 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.

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