1
1 mark
Which of the following formulae shows an alkane?
C2H4
C4H8
C4H10
C5H10
Was this exam question helpful?
Formulae, Functional Groups & Terminology (Cambridge (CIE) O Level Chemistry): Exam Questions
Exam code: 5070
4 hours37 questions
2
1 mark
Which of the following structures shows a compound that belongs to a different homologous series to octane?
Was this exam question helpful?
3
1 mark
The diagram shows the structure of ethene.
Which of these compounds has similar chemical properties of ethene?
Was this exam question helpful?
4
1 mark
The structures of four organic compounds are shown.
Which one does not show the displayed formula of the compound?
Was this exam question helpful?
5
1 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
Was this exam question helpful?
6
1 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
Was this exam question helpful?
1
1 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
Was this exam question helpful?
2
1 mark
Which compound is an alkane?
C31H33
C31H60
C31H62
C31H64
Was this exam question helpful?
1
1 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.
Was this exam question helpful?
2
1 mark
Which pair of the following structures shows a homologous series?
Was this exam question helpful?
3
1 mark
Which group of compounds is from a homologous series?
CH3OH, C2H5OH, C3H7OH
C3H6, C3H8, C3H7OH
CH4, C2H4, C3H8
CH3CO2H, CH3CH2OH, HCO2H
Was this exam question helpful?
4
1 mark
The displayed formula of an organic compound is shown.
What is the name of this compound?
butan-1-ol
butan-2-ol
butan-3-ol
butanol
Was this exam question helpful?
5
1 mark
W, X, Y and Z are the first four members of the carboxylic acid homologous series, but not necessarily in that order.
The table shows their relative molecular masses, Mr.
substance | relative molecular mass, Mr |
W | 60 |
X | 88 |
Y | 46 |
Z | 74 |
Which sequence shows the substances in order of decreasing boiling point?
X → Z → W → Y
Y → W → Z → X
W → X → Y → Z
Z → X → W →Y
Was this exam question helpful?