Chemistry Unit C1 Worksheet - Study And Revision Pack (Foundation Paper) Page 24
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34Revised
C1 Specification
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5.1 Describe hydrocarbons as compounds that contain carbon and
hydrogen only
5.2 Describe crude oil as a complex mixture of hydrocarbons
5.3 Describe the separation of crude oil into simpler, more useful
mixtures by the process of fractional distillation (details of
fractional distillation are not required)
5.4 Recall the name and uses of the following fractions:
a gases, used in domestic heating and cooking
b petrol, used as fuel for cars
c kerosene, used as fuel for aircraft
d diesel oil, used as fuel for some cars and trains
e fuel oil, used as fuel for large ships and in some power
stations
f bitumen, used to surface roads and roofs
5.5 Describe that hydrocarbons in different fractions differ from each
other in:
a the number of carbon and hydrogen atoms their molecules
contain
b boiling points
c ease of ignition
5.6 Describe how the complete combustion of hydrocarbons:
a involves the oxidation of the hydrocarbons
b produces carbon dioxide and water
c gives out energy
5.7 Describe the chemical test for carbon dioxide (using limewater)
5.8 Explain why the incomplete combustion of hydrocarbons can
produce carbon and carbon monoxide
5.9 Describe how carbon monoxide behaves as a toxic gas
5.10 Demonstrate an understanding of the problems caused by
incomplete combustion producing carbon monoxide and soot in
appliances that use carbon compounds as fuels
5.11 Explain why impurities in some hydrocarbon fuels result in the
production of sulfur dioxide
5.12 Demonstrate an understanding of some problems associated
with acid rain caused when sulfur dioxide dissolves in rain water
5.13 Describe how various gases in the atmosphere, including carbon
dioxide, methane and water vapour, trap heat from the Sun and
that this keeps the Earth warm
5.14 Demonstrate an understanding that the Earth’s temperature
varies and that human activity may influence this
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