Q.1
The main products from crude oil are fuels. Which of the following fuel is most likely to be used in an aeroplane?
  • Butane
  • Diesel
  • Kerosene
  • Petrol
Q.2
Which of these fuels is most likely to be used for camping stoves?
  • Butane
  • Diesel
  • Kerosene
  • Petrol
Q.3
Why does 'light' crude oil cost more than 'heavy' crude oil?
  • It is lighter in weight
  • It contains more big molecules
  • It contains more small molecules
  • It is lighter in colour
Q.4
Methane is the source of hydrogen for...
  • the Haber process
  • making ethanol
  • producing polymers
  • cracking hydrocarbons
Q.5
One possible product of cracking hydrocarbons can be ethene. Ethene can be used to manufacture ethanol, which is used as a fuel. What conditions are required for this reaction to take place?
  • High pressure and catalyst
  • High pressure and high temperature
  • High temperature and catalyst
  • High pressure, high temperature and catalyst
Q.6
Pick the correct equation to show the production of ethanol from ethene.
  • C2H4 + H2O → C2H5OH
  • C2H4 + H2O → C2H4OH
  • C2H4 + H2 → C2H5OH
  • C2H6 + H2O → C2H5OH
Q.7
Ethene can also be used to make poly(ethene). What type of reaction is required for this to occur?
  • Cracking
  • Thermal decomposition
  • Displacement
  • Polymerisation
Q.8
When ethene is polymerised, depending on the conditions, slightly different substances are formed. LDPE is formed with very high pressure and a trace of oxygen, whereas HDPE is formed using a catalyst at 50 C and a high pressure. What is the main difference between these two types of poly(ethene)?
  • LDPE is stronger and has a higher softening temperature than HDPE
  • HDPE is stronger and has a higher softening temperature than LDPE
  • HDPE is stronger and has a lower softening temperature than LDPE
  • LDPE is stronger and has a lower softening temperature than HDPE
Q.9
Plasticisers are sometimes added to polymers. For what reason?
  • To increase a polymer's melting point
  • To make the polymer stronger
  • To make the polymer soluble in water
  • To make the polymer more flexible
Q.10
Pick the correct combination for uses for plasticised PVC and unplasticised uPVC.
  • PVC - ropes and carpets uPVC - carrier bags and water bottles
  • PVC - drain pipes and window frames uPVC - wire insulation and shrink wrap
  • PVC - wire insulation and shrink wrap uPVC - drain pipes and window frames
  • PVC - drain pipes and window frames uPVC - carrier bags and carpets
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