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Multiple Choice
What is the IUPAC name of the compound with the structure ?
A
Butane
B
Pentane
C
Hexane
D
Propane
Verified step by step guidance
1
Identify the longest continuous carbon chain in the given structure. The structure is 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 suffix '-ane' is used for single-bonded carbon chains, and the prefix indicates the number of carbons: 'meth-' for 1, 'eth-' for 2, 'prop-' for 3, 'but-' for 4, 'pent-' for 5, and 'hex-' for 6.
Since the chain has 5 carbons, the base name will be 'pentane'.
Check for any substituents or branches on the main chain. In this case, the structure is a straight chain with no branches or functional groups, so no additional prefixes or locants are needed.
Conclude that the correct IUPAC name for the compound is 'pentane'.