11 mark
Which of the following structures shows a compound that belongs to a different homologous series to octane?
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Formulae, Functional Groups & Terminology (CIE IGCSE Chemistry: Co-ordinated Sciences (Double Award))
Exam Questions
2 hours32 questions
21 mark
The diagram shows the structure of ethene.
Which of these compounds has similar chemical properties of ethene?
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31 mark
The structures of four organic compounds are shown.
Which one does not show the displayed formula of the compound?
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41 mark
Extended tier only
Which of the following is not a feature of a homologous series?
Compounds have the same functional group
Compounds have the same physical properties
Compounds have the same general formula
Compounds have similar chemical properties
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51 mark
Butene and octene belong to the same homologous series.
What would be the same for butene and octene?
Boiling point
Number of hydrogen atoms per molecule
Relative molecular mass
Functional group
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11 mark
Organic compounds can have names that have the suffixes of -ane, -ene, -ol or -oic acid.
How many of these have at least one double bond in their structure
1
2
3
4
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21 mark
The diagram below represents the molecule of a compound.
What is the name of this compound?
Ethane
Ethanol
Ethanoic acid
Ethene
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11 mark
The first three members of a homologous series are shown.
Why do these molecules represent a homologous series?
They contain carbon and hydrogen atoms.
They have saturated bonds.
They have the same functional group.
They react differently from each other.
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21 mark
Extended tier only
Which pair of the following structures shows a homologous series?
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31 mark
Extended tier only
Which group of compounds is from a homologous series?
CH3OH, C2H5OH, C3H7OH
C3H6, C3H8, C3H7OH
CH4, C2H4, C3H8
CH3CO2H, CH3CH2OH, HCO2H
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41 mark
Extended tier only
The diagram below shows some simple hydrocarbons and the products of two reactions.
Which of these structures are named correctly?
| Structure 1 | Structure 2 | Structure 3 | |
| A | x | ✔ | ✔ |
| B | ✔ | ✔ | ✔ |
| C | x | ✔ | x |
| D | ✔ | x | ✔ |
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51 mark
Extended tier only
The diagram below shows a reaction scheme. What are the names of all of the compounds?
| P | Q | R | S | |
| A | ethene | ethane | ethanoic acid | ethanol |
| B | ethane | ethene | ethanol | ethanoic acid |
| C | ethene | ethane | ethanol | ethanoic acid |
| D | ethane | ethene | ethanoic acid | ethanol |
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