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Chemistry · May / June 2017 · Paper 12 · Question 38

5070Formulae, functional groups and terminology

Molecules 1–4 are unbranched hydrocarbons. 1 C10H22 2 C10H20 3 C9H20 4 C8H16 Which row correctly identifies these hydrocarbons as alkanes or alkenes?

  1. Aalkane: 1 and 2; alkene: 3 and 4
  2. Balkane: 1 and 3; alkene: 2 and 4
  3. Calkane: 1 and 4; alkene: 2 and 3
  4. Dalkane: 2 and 3; alkene: 1 and 4

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Correct answer: B. alkane: 1 and 3; alkene: 2 and 4

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