1
State what happens to the crude oil when it is in X
State what happens to the crude oil when it is in X
1
Give the name of fraction E
Give the name of fraction E
1
Give a use for fraction A
Give a use for fraction A
Sulfur is an impurity in crude oil.
Explain why this is a problem for the environment
Describe how crude oil is separated into fractions in the fractionating column
State what happens to the crude oil when it is in X
Give the name of fraction E
Give a use for fraction A
One of the compounds in fraction D is tridecane (C13H28) which can be cracked to form shorter-chain hydrocarbon
State the catalyst and temperature used in this cracking reaction
The equation shows an example of a catalytic cracking reaction
C13H28 → C8H18 + C2H4 + C3H6
Give two one reasons why this reaction is important
Give a use for kerosene and a use for bitumen
Describe what is meant by cracking
Give a reason why compound X is not a hydrocarbon
Give the letter of the compound that is a saturated hydrocarbon with the empirical formula CH2
Give the letter of the compound that produces nine moles of water when one mole undergoes complete combustion
Explain why compounds W and Y are isomers
Describe how the combustion of sulfur-free petrol in a car engine produces gases that can cause acid rain.
Do not refer to carbon dioxide in your answer