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1 markSources of Hydrocarbon Compounds

CSEC Chemistry · January 2012 · Paper 2 · Question 3(b)(i)

Fractional distillation of crude oil produces several fractions, containing a range of compounds with varying numbers of carbon atoms. Three of these fractions are shown in Table 3.

State the name of Fraction 1 OR Fraction 3. Fraction number: Fraction name:

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Other parts of this question

  1. 3(a)Hydrocarbons are compounds that contain the elements, hydrogen and carbon. Name TWO natural sources of hydrocarbons.[2 marks]
  2. 3(b)(ii)State ONE use of Fraction 2.[1 mark]
  3. 3(c)(i)State the name of Compound X and the homologous series to which it belongs. Name of Compound X: Homologous series:[1 mark]
  4. 3(c)(ii)Write the FULLY DISPLAYED structural formulae of the two molecules that are produced when Compound X is hydrolysed.[2 marks]
  5. 3(d)(i)a)Name a polymer of glucose. Name of polymer:[1 mark]
  6. 3(d)(i)b)Using three glucose units, draw the partial structure of the polymer in the space provided.[2 marks]
  7. 3(d)(ii)State the expected observations in EACH case. Glucose: Polymer:[2 marks]
  8. 3(e)Name the type of polymer formed and give ONE use for this type of polymer. Type of polymer: Use:[1 mark]

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