OCR A Jun 2017 Paper 1 Q21

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12 SECTION B Answer all the questions. 21 This question is about 2-chloropropene, C3H5Cl. (a) Three reactions of 2-chloropropene are shown in the flowchart below. (i) Complete the flowchart to show the organic products formed in the reactions. H2 / Ni Br2 ClCl H3C H 2-chloropropene steam major product (ii) The reaction of 2-chloropropene with steam requires a catalyst. State a suitable catalyst for this reaction. [3][1]<br /> (b) 2-chloropropene can be polymerised to form poly(2-chloropropene). 13 (i) Write a balanced equation for the formation of this polymer. The equation should include the structure of the repeat unit of the polymer. (ii) After their useful life, waste polymers can be disposed of by combustion. State one particular problem with disposal of poly(2-chloropropene) by combustion.[1] [2]<br />

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