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1 markReactions of Carbon Compounds

CSEC Chemistry · January 2018 · Paper 2 · Question 3(b)(ii)

Dichloromethane can be obtained from methane. This reaction takes place in two steps.

Is the halogenation of methane an addition or substitution reaction?

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Other parts of this question

  1. 3(a)(i)Draw the FULLY DISPLAYED structure of ethene.[2 marks]
  2. 3(a)(ii)Draw the FULLY DISPLAYED structure of the 1,2-dichloroethane.[2 marks]
  3. 3(a)(iii)Is the halogenation of ethene an addition or substitution reaction?[1 mark]
  4. 3(b)(i)Write balanced chemical equations to show EACH step in the formation of dichloromethane.[4 marks]
  5. 3(c)(i)Define the term 'polymer.'[1 mark]
  6. 3(c)(ii)Define what is meant by ‘addition polymerization.'[1 mark]
  7. 3(c)(iii)State ONE use of EACH of the following polymers: Polyvinyl chloride, Teflon, Poly(ethene).[1 mark]

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