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WorksheetsMr L AQA A Level Chemistry - Isomers MA/JT
Total questions: 12
Worksheet time: 8mins
What is a structural isomer?
Same molecular formula but different structural formula.
Different functional groups.
Different bonds in the structure.
Change in the position of the functional group.
Name this isomer of heptane
5-methyl-heptane
2-methyl-hexane
2-methyl-heptane
5-methyl-hexane
How many isomers are there of pentene?
7
6
5
2
What is positional isomerism?
Swap the position of two functional groups.
Chain has the same molecular formula but a different chain length.
Functional group is different.
Same functional group and a different position.
What is a chain isomer?
It is arranged in the shape of a circle.
The chain is of a different length.
The functional groups are different.
What is E-Z isomerism?
An E isomer is where molecules with atoms or groups on opposite sides.
E-Z isomerism is another way of naming structural isomers.
A Z isomer is where molecules with atom or groups are on the same side.
An example of chain isomerism.
What is the molecular formula of 1,2-dichloroethene?
C2H4Cl2
C2H4Cl1
C2H2Cl2
C2H2Cl1
What are the two correct isomers of hexane?
2-methylpentane
2-methylpropane
2,2-dimethylbutane
1-methylethene
What is the shortest chain-length alkane to have structural isomer?
Ethane
Butane
Hexane
Pentane
Which one of these are types of isomerism?
Structural Isomerism
Positional Isomerism
Molecular Isomerism
E-Z Isomerism
What's the molecular formula of 2,3-dimethylbut-2-ene?
C4H8
C6H12
C5H10
C7H14
How many structural isomers does pentane have?
3
4
5
1
