alleryWhat is the IUPAC name of the compound $\mathrm{CH_2=CH-CH_2-CH_3}$?
ABut-1-ene
BBut-2-ene
CButyne
DButane
Answer & Solution
Correct answer: A. But-1-ene
A four-carbon chain with a double bond starting at C1 is but-1-ene.
Butyne would have a triple bond
but-2-ene has the double bond between C2 and C3.
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