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6. What is condensation polymerisation?

  • The same as addition polymerisation
  • Amino acids making proteins
  • 2 monomers with 1 functional group each reacting making a polymer and a small molecule (e.g. water)
  • Alkene's double bonds opening up and them joining together

7. What is ethyl ethanoate produced from?

  • None of the above
  • Ethanoic acid and ethanol
  • Ethanoic acid and an ester
  • Ethene and oxygen

8. What is a hydrocarbon?

  • An alcohol
  • A molecule that contains only hydrogen and carbon
  • A molecule that contains hydrogen and carbon
  • Hydrogen

9. What is the disadvantage of fermentation to make ethanol?

  • Slow rate of production
  • Fairly high quality ethanol
  • Renewable
  • Can be made in batches

10. How do you break down a large alkane into a smaller one?

  • Heating it
  • Distillation
  • Cracking
  • You can't

11. Why are alkenes useful?

  • They are in crude oil
  • They can react with things
  • They can react via addition reactions and also make plastics
  • They aren't very useful

12. What is the general trend for viscosity, flammability and boiling point in hydrocarbons?

  • As the hydrocarbon gets bigger, viscosity increases, flammability decreases, boiling point increases
  • As the hydrocarbon gets bigger, viscosity increases, flammability increases, boiling point increases
  • As the hydrocarbon gets smaller, viscosity increases, flammability decreases, boiling point increases
  • As the hydrocarbon gets smaller, viscosity decreases, flammability decreases, boiling point increases

13. What are four naturally occuring polymers?

  • There aren't 4, only Starch and Amino Acids
  • DNA's 4 monomers
  • DNA, Starch, Cellulose, Protein
  • Sugars, Cell Sap, Nucleotides, Amino Acids

14. How are alcohols made?

  • They can't be made, only found
  • Combustion of an alkene
  • Via hydration of an alkene or fermentation of yeast
  • Via hydration of an alkane or fermentation of yeast

15. What is the general formula of an alcohol

  • Impossible to tell
  • CnH2n+2
  • CnH2n+1
  • CnH2n

16. What type of reaction takes place during cracking?

  • Hydration
  • Thermal Decomposition
  • Shortening
  • Breaking

17. What is formed when a carboxylic acid reacts with an alcohol?

  • They don't react in the first place
  • An ester + hydrogen
  • An ester + water
  • A dialcohol

18. What is the general formula for an alkene?

  • CnH2n
  • CnH2n+2
  • CnH2n+1
  • There isn't one

19. What is one way to physically tell if there is an alkene instead of alkane?

  • They are too similar to tell
  • An alkene will decolourlise orange bromine water, in alkanes it won't
  • Look at the formula
  • Guess

20. What pH solution would ethanol give in water?

  • 7
  • 1
  • 9
  • 3