The main products from crude oil are fuels. Which of the following fuel is most likely to be used in an airplane?
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Butane
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Diesel
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Kerosene
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Petrol
Q.2.
Which of these fuels is most likely to be used for camping stoves?
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Butane
0%
Diesel
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Kerosene
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Petrol
Q.3.
Why does 'light' crude oil cost more than 'heavy' crude oil?
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It is lighter in weight
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It contains more big molecules
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It contains more small molecules
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It is lighter in color
Q.4.
Methane is the source of hydrogen for...
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the Haber process
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making ethanol
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producing polymers
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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?
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High pressure and catalyst
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High pressure and high temperature
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High temperature and catalyst
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High pressure, high temperature and catalyst
Q.6.
Pick the correct equation to show the production of ethanol from ethene.
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C2H4 + H2O → C2H5OH
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C2H4 + H2O → C2H4OH
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C2H4 + H2 → C2H5OH
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C2H6 + H2O → C2H5OH
Q.7.
Ethene can also be used to make poly(ethene). What type of reaction is required for this to occur?
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Cracking
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Thermal decomposition
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Displacement
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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)?
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LDPE is stronger and has a higher softening temperature than HDPE
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HDPE is stronger and has a higher softening temperature than LDPE
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HDPE is stronger and has a lower softening temperature than LDPE
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LDPE is stronger and has a lower softening temperature than HDPE
Q.9.
Plasticisers are sometimes added to polymers. For what reason?
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To increase a polymer's melting point
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To make the polymer stronger
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To make the polymer soluble in water
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To make the polymer more flexible
Q.10.
Pick the correct combination for uses for plasticised PVC and unplasticised uPVC.
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PVC - ropes and carpets
uPVC - carrier bags and water bottles
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PVC - drain pipes and window frames
uPVC - wire insulation and shrink wrap
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PVC - wire insulation and shrink wrap
uPVC - drain pipes and window frames
0%
PVC - drain pipes and window frames
uPVC - carrier bags and carpets
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