Hydrocarbons - exam practice
Hydrocarbons
Question 1 of 8
This question is about the properties of hydrocarbons.
State the name of the hydrocarbon in the diagram below.
Draw the structure of butene.
Explain what is meant by the term saturated hydrocarbon.
This question is about hydrocarbons.
Explain what is meant by the term hydrocarbon.
The table below shows the chemical formula for the first four alkanes.
State the general formula for alkanes.
Propene (C3H6) is an alkene.
Describe the test that can be done to distinguish between a sample of propane and a sample of propene.
This question is about the separation of crude oil, a mixture of different hydrocarbons.
State the name of the industrial process used to separate crude oil into fractions and outline the process.
Bitumen is a fraction that is removed near the base of the fractioning column.
State one use of bitumen.
The table below shows the boiling points for the first 10 alkanes.
Plot a bar graph to show how the temperature varies with length of hydrocarbon.
Describe the trend shown by the graph.
This question is about the cracking of long chain alkanes.
A long chain hydrocarbon has the chemical formula C14H30.
When it undergoes cracking it splits into decane and another hydrocarbon, X.
Write a chemical equation to show this reaction.
State the name given to the other hydrocarbon, X.
Draw the structure of hydrocarbon X to show all its covalent bonds.
Describe the conditions required to crack long chain hydrocarbons into shorter chain hydrocarbons.
This question is about the process of fractional distillation.
The table below shows the boiling points of different fractions.
Label the fractions on the fractioning column to show where they are extracted.
Name the fraction that is used as aviation fuel.
Kerosene has different uses and properties to those of bitumen.
State two differences, other than boiling point, between the properties of kerosene and bitumen.
One of the alkanes found in petrol has the displayed formula below.
Determine the molecular formula of this alkane.
When the fraction in part d) is combusted, it reacts with oxygen in the air to form carbon dioxide and water.
Write a balanced chemical equation for this reaction.
This question is about alkenes.
Complete the table below by giving the missing information about the alkene with the formula C4H8.
Butene is known as an unsaturated hydrocarbon.
Explain what is meant by the term unsaturated.
Describe a test that can be done to test if a hydrocarbon is saturated or unsaturated.
Ethene reacts with steam in the presence of a catalyst to form an alcohol.
Explain the role of a catalyst in this reaction.
Complete the equation below to show the reaction between ethene and steam.
State the name of the alcohol formed in this reaction.
This question is about the reaction between propene and hydrogen.
Propene reacts with hydrogen to form a saturated hydrocarbon.
Write the balanced symbol equation for this reaction.
Draw the structure of the hydrocarbon produced.
State the name of the homologous series that C3H8 belongs to.
Propanol can be formed from propene.
What is this type of reaction called?
This question is about alkanes and alkenes.
What is the empirical formula of decane C10H22?
Which of the following is used to test for a saturated hydrocarbon?
Which of the following represents the general formula of alkanes?
Write a balanced symbol equation for the complete combustion of methane.