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3 marksReactions of Carbon Compounds

CSEC Chemistry · January 2006 · Paper 2 · Question 4(b)(ii)

Ethene reacts with chlorine to form 1,2-dichloroethane.

1,2-dichloroethane can be decomposed to form chloroethene (CH₂ = CHCl) and hydrogen chloride. Describe a test that can be used to distinguish between 1,2-dichloroethane and chloroethene in the laboratory. Reagent: (missing) Observation: (missing)

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Other parts of this question

  1. 4(a)(i)What is meant by the term 'cracking'?[1 mark]
  2. 4(a)(ii)Write a balanced equation to illustrate how ethene is formed by the cracking of C₈H₁₈.[2 marks]
  3. 4(b)(i)Write a balanced equation to show this reaction.[2 marks]
  4. 4(b)(iii)Based on the data in Table 4, suggest a suitable technique that can be used to separate chloroethene from the reaction mixture.[1 mark]
  5. 4(c)(i)Write an equation to illustrate how a partial structure of PVC is formed from its monomer, chloroethene.[2 marks]
  6. 4(c)(ii)Name the polymerization process which occurs in the formation of PVC.[1 mark]
  7. 4(c)(iii)Name a polymer that is formed by a process which is different from that of PVC, and the type of linkage which occurs in that polymer. Name of polymer:…[3 marks]

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