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Sources of Hydrocarbon Compounds · CSEC Chemistry

35 past-paper questions on Sources of Hydrocarbon Compounds, part of Organic Chemistry, from every CSEC Chemistry paper on Quelpr.

Practise Sources of Hydrocarbon Compounds
  1. 1(a)(i)2 marks· Chemistry Q1 1(a)(i)List TWO natural sources of hydrocarbons.
  2. 2(c)(i)1 mark· Chemistry Q2 2(c)(i)Name ONE natural source of hydrocarbons.
  3. 3(a)2 marks· Chemistry Q3 3(a)State TWO natural sources of hydrocarbons.
  4. 3(a)2 marks· Chemistry Q3 3(a)Explain what is meant by the term 'cracking'.
  5. 3(a)2 marks· Chemistry Q3 3(a)Hydrocarbons are compounds that contain the elements, hydrogen and carbon. Name TWO natural sources of hydrocarbons.
  6. 3(a)(i)3 marks· Chemistry Q3 3(a)(i)State ONE natural source of hydrocarbons and TWO possible uses of Compound A.
  7. 3(a)(i)1 mark· Chemistry Q3 3(a)(i)Name the property of compounds upon which fractional distillation is based.
  8. 3(a)(ii)2 marks· Chemistry Q3 3(a)(ii)Name the lightest and heaviest fractions that are usually obtained from the fractional distillation of crude oil. Lightest fraction: Heaviest fraction:
  9. 3(a)(iii)2 marks· Chemistry Q3 3(a)(iii)State ONE use of EACH of the fractions named in (a) (ii) above. Lightest fraction: Heaviest fraction:
  10. 3(b)(i)1 mark· Chemistry Q3 3(b)(i)Identify ONE of these numbered fractions. Fraction number: Fraction name :
  11. 3(b)(i)1 mark· Chemistry Q3 3(b)(i)State the name of Fraction 1 OR Fraction 3. Fraction number: Fraction name:
  12. 3(b)(i)2 marks· Chemistry Q3 3(b)(i)Define the term 'catalytic cracking'.
  13. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)State ONE use of Fraction 3.
  14. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)State ONE use of Fraction 2.
  15. 3(b)(ii)1 mark· Chemistry Q3 3(b)(ii)State the importance of catalytic cracking in petroleum refineries.
  16. 4(a)(i)1 mark· Chemistry Q4 4(a)(i)What is meant by the term 'cracking'?
  17. 4(a)(ii)2 marks· Chemistry Q4 4(a)(ii)Write a balanced equation to illustrate how ethene is formed by the cracking of C₈H₁₈.
  18. 4(e)2 marks· Chemistry Q4 4(e)What reagent and reaction conditions are necessary to convert Y to X? Reagent: Conditions:
  19. 5(a)1 mark· Chemistry Q5 5(a)State ONE natural source of hydrocarbons.
  20. 5(b)4 marks· Chemistry Q5 5(b)List TWO other fractions that can be obtained and state ONE use of EACH fraction.
  21. 5(c)(i)1 mark· Chemistry Q5 5(c)(i)Define the term 'cracking'.
  22. 5(c)(ii)2 marks· Chemistry Q5 5(c)(ii)How does catalytic cracking differ from thermal cracking?
  23. Q561 mark · multiple choice· CSEC Chemistry · January 2017 · Paper 1Which of the following is a natural source of hydrocarbons?
  24. Q211 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1In which of the following processes is fractional distillation NOT used?
  25. Q601 mark · multiple choice· CSEC Chemistry · January 2018 · Paper 1Which of the following hydrocarbons is the MAJOR constituent of natural gas?
  26. Q561 mark · multiple choice· CSEC Chemistry · January 2019 · Paper 1Which of the following is a natural source of hydrocarbons?
  27. Q461 mark · multiple choice· CSEC Chemistry · May/June 2010 · Paper 1When hydrocarbons with 5 to 12 carbon atoms are cracked, which of the following can be obtained? I. Ethene II. Propene III. Methane IV. Petroleum
  28. Q571 mark · multiple choice· CSEC Chemistry · May/June 2011 · Paper 1The process by which large molecules of hydrocarbons are broken up into smaller molecules is called
  29. Q561 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1When large alkane molecules are cracked, the products are a mixture of
  30. Q571 mark · multiple choice· CSEC Chemistry · May/June 2013 · Paper 1The MAJOR natural source of alkanes and alkenes is
  31. Q391 mark · multiple choice· CSEC Chemistry · May/June 2015 · Paper 1When large alkane molecules are cracked, the products are a mixture of
  32. Q451 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1Which of the following molecules could be obtained by cracking the alkane, \text{C}_8\text{H}_{18}? I. \text{C}_2\text{H}_4 II. \text{C}_6\text{H}_{14} III. \text{C}_{16}\text{H}_{34}
  33. Q461 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1The MAJOR natural source of alkanes and alkenes is
  34. Q541 mark · multiple choice· CSEC Chemistry · May/June 2016 · Paper 1When a hydrocarbon molecule is cracked, which TWO smaller molecules are produced? I. An alkane II. An alkene III. An alcohol IV. An organic acid
  35. Q391 mark · multiple choice· CSEC Chemistry · May/June 2017 · Paper 1'Cracking' is the process of breaking down

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