객관식
What is the correct IUPAC name for the compound with the structure ?
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4. Alkanes and Cycloalkanes
IUPAC Naming
객관식
What is the correct IUPAC name for the compound with the structure ?
A
Propane
B
Butane
C
Hexane
D
Pentane
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검증된 단계별 안내1
Identify the longest continuous carbon chain in the given structure. The structure is \( \mathrm{CH_3-CH_2-CH_2-CH_2-CH_3} \), which contains 5 carbon atoms connected in a straight chain.
Recall the IUPAC nomenclature for alkanes, where the name is based on the number of carbon atoms in the longest chain: 1 carbon is methane, 2 is ethane, 3 is propane, 4 is butane, 5 is pentane, and 6 is hexane.
Since the longest chain has 5 carbons, the base name of the compound is derived from 'pentane'.
Check for any substituents or branches on the chain. In this case, the structure is a straight chain with no branches or functional groups, so no additional prefixes or suffixes are needed.
Therefore, the correct IUPAC name for the compound is 'pentane', reflecting a straight-chain alkane with five carbon atoms.
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