11 mark
Which of the following formulae shows an alkane?
C2H4
C4H8
C4H10
C5H10
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Formulae, Functional Groups & Terminology (Cambridge O Level Chemistry)
Exam Questions
4 hours34 questions21 mark
Which of the following structures shows a compound that belongs to a different homologous series to octane?
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31 mark
The diagram shows the structure of ethene.
Which of these compounds has similar chemical properties of ethene?
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41 mark
The structures of four organic compounds are shown.
Which one does not show the displayed formula of the compound?
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51 mark
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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61 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
The structures of six organic compounds compound A are shown.
Which two compounds are isomers of one another?
B and D
A and C
C and F
C and E
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21 mark
Which compound is an alkane?
C31H33
C31H60
C31H62
C31H64
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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
Which pair of the following structures shows a homologous series?
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31 mark
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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