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What is the correct IUPAC name for the compound with the structure ?
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4. Alkanes and Cycloalkanes
IUPAC Naming
Multiple Choice
What is the correct IUPAC name for the compound with the structure ?
A
Hexane
B
Pentane
C
2-Methylbutane
D
Butane
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검증된 단계별 안내1
Identify the longest continuous carbon chain in the given structure. The structure shows a straight chain of 5 carbon atoms connected sequentially: \(\mathrm{CH_3-CH_2-CH_2-CH_2-CH_3}\).
Count the number of carbon atoms in this longest chain. Since there are 5 carbons, the base name corresponds to 'pentane' according to IUPAC nomenclature, where 'pent-' indicates five carbons and '-ane' indicates single bonds.
Check for any branches or substituents attached to the main chain. In this structure, there are no branches or additional groups attached; it is a straight chain alkane.
Since there are no substituents, the compound is named simply by the base name of the longest chain, which is 'pentane'.
Confirm that the other options such as 'hexane' (6 carbons), '2-methylbutane' (a 4-carbon chain with a methyl substituent), and 'butane' (4 carbons) do not match the structure given.
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