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Multiple Choice
Given the following structure: with a straight chain, what is the IUPAC name for this alkane?
A
Pentane
B
Hexane
C
Neopentane
D
-Methylbutane
Verified step by step guidance
1
Identify the molecular formula given: C\_5H\_12, which corresponds to an alkane with five carbon atoms and twelve hydrogen atoms.
Recognize that the problem specifies a straight-chain structure, meaning all carbon atoms are connected in a continuous, unbranched chain.
Recall the IUPAC nomenclature for alkanes: the prefix indicates the number of carbon atoms in the longest continuous chain, and the suffix '-ane' denotes an alkane (a saturated hydrocarbon).
For a straight chain of five carbon atoms, the correct prefix is 'pent-', so the base name becomes 'pentane'.
Confirm that other options like 'hexane' (6 carbons), 'neopentane' (a branched isomer), and '2-methylbutane' (a branched isomer with a methyl group on the second carbon) do not match the straight-chain requirement.