Alkane Nomenclature Worksheet
A Grade 10 science worksheet covering the fundamental rules of alkane nomenclature, including identifying parent chains, substituents, and naming branched alkanes.
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Alkane Nomenclature Practice
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Read each question carefully and follow the IUPAC rules for naming alkanes. Show all your work when drawing structures.
1. What is the parent chain for 2,2,4-trimethylpentane?
Butane
Pentane
Hexane
Heptane
2. Which of the following is the correct name for the compound CH₃-CH(CH₃)-CH₂-CH₃?
Butane
2-methylbutane
Isopentane
Pentane
3. The suffix used for alkanes in IUPAC nomenclature is .
4. A branched alkane always contains at least one group.
5. When numbering the parent chain, you start from the end closest to a .
6. Draw the condensed structural formula for 3-ethyl-2,4-dimethylhexane.
7. Name the following alkane using IUPAC nomenclature:
CH₃-CH₂-CH(CH₃)-CH₂-CH(CH₂CH₃)-CH₃
8. The longest continuous carbon chain is always the parent chain.
True
False
9. Ethyl groups are always listed before methyl groups in an alkane name.
True
False
Match the alkane prefix with the corresponding number of carbon atoms.
10. Prop-
a. 5
11. But-
b. 3
12. Pent-
c. 4
13. Hex-
d. 6