Naming Alkanes Worksheet
A Grade 9 Science worksheet focusing on the nomenclature of alkanes, including identifying parent chains, functional groups, and applying IUPAC rules.
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Naming Alkanes Worksheet
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Read each question carefully and provide the best answer. For naming alkanes, use IUPAC nomenclature rules.
1. What is the parent chain name for an alkane with 5 carbon atoms in a continuous chain?
Butane
Pentane
Hexane
Propane
2. Which of the following is the correct name for CH₃CH₂CH(CH₃)CH₃?
2-methylbutane
3-methylbutane
isopentane
n-pentane
3. The suffix used for alkanes in IUPAC nomenclature is .
4. A branched alkane with the longest continuous chain of six carbons and a methyl group on the third carbon is called .
5. Draw the condensed structural formula for 2,2-dimethylpropane. Explain why it is not called 2,2-dimethylbutane.
6. The IUPAC name for an alkane always prioritizes the longest continuous carbon chain, even if a shorter chain has more substituents.
True
False
Match the alkane name with its corresponding number of carbon atoms in the parent chain.
7. Hexane
a. 3
8. Propane
b. 6
9. Butane
c. 4