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- Multiple ChoicePlease save your changes before editing any questions.
Fossil fuels (e.g. coal, oil and gas) are:
renewable
non-renewable
finite
not finite
- Multiple ChoicePlease save your changes before editing any questions.
Crude oil is made up of:
Ethane
Butane
A mixture of different hydrocarbons
Extremely large hydrocarbons which are broken up once extracted
- Multiple ChoicePlease save your changes before editing any questions.
The general formula of the alkanes is:
CnH2n
CnH2n-2
CnH2n+2
C2nHn
- Multiple ChoicePlease save your changes before editing any questions.
A fraction of crude oil is made up of:
Hydrocarbons of similar chain lengths
Numbers
Large hydrocarbons
Alkenes only
- Multiple ChoicePlease save your changes before editing any questions.
Different fractions in crude oil are separated by:
Cracking
Fractional Distillation
Filtration
Crystalisation
- Multiple ChoicePlease save your changes before editing any questions.
Shorter hydrocarbons have:
Higher boiling points
Lower boiling points
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Gases/LPG are used for:
Fuel in cars
Fuel for large ships
Roof and road surfacing
Domestic heating and cooking
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Petrol is used for:
Fuel in cars
Fuel in aircraft
Domestic heating and cooking
Road surfacing
- Multiple ChoicePlease save your changes before editing any questions.
Kerosene (paraffin) is used for:
Fuel for cars
Domestic heating and cooking
Fuel in aircraft
Fuel for large ships and in power stations
- Multiple ChoicePlease save your changes before editing any questions.
Diesel oil is used for:
Fuel in cars
Fuel in aircraft
Road and roof surfacing
Fuel in some cars and larger vehicles
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Fuel oil is used for:
Fuel in some cars and larger vehicles
Fuel for large ships and in some power stations
Roof and road surfacing
Fuel for cars
- Multiple ChoicePlease save your changes before editing any questions.
Bitumen is used for:
Fuel for large ships and in some power stations
Roof and road surfacing
Fuel in aircraft
Fuel in cars
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Members of a homologous series have:
The same general formula
A trend in chemical properties
A trend in physical properties
The molecular formulas of successive members differ by CH2
- Multiple ChoicePlease save your changes before editing any questions.
Shorter hydrocarbons:
Have weaker intermolecular forces of attraction between their molecules
Have higher boiling points
Are easier to ignite
Tend to be gases at room temperature
Are more viscous
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In complete combustion of a hydrocarbon the products are:
Carbon and Hydrogen
Carbon dioxide and Hydrogen
Carbon dioxide and Water
Carbon monoxide and Hydrogen
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Cracking is a:
Condensation reaction.
Thermal decomposition reaction.
Addition reaction.
Elimination reaction.
- Multiple ChoicePlease save your changes before editing any questions.
Cracking produces:
Alkanes
Alkenes
Alkanes and alkenes
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Cracking requires a catalyst.
True
False
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Cracking conditions are:
Catalyst
Temperatures of 200°C - 400°C
Temperatures of 400°C - 700°C
Pressure of 70 atm
Pressure of 40 atm
- Multiple ChoicePlease save your changes before editing any questions.
What is the structure shown?
Methane
Propane
Ethane
Butane
Pentane
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Alkanes are unsaturated hydrocarbons.
True
False
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The general formula of the alkenes is:
CnH2n+2
CnH2n
CnH2n-2
Cn+2H2n
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What is this molecule?
Butane
But-1-ene
But-2-ene
Butene
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Bromine water is used to test for an alkene because:
The alkene is saturated
The bromine water decolourises when added to an alkene
There is an addition reaction between bromine and the alkene
Alkanes also react with bromine water in the same way