Which of the following is not a correct IUPAC name for an alkene?
A) 2-methyl-1-butene
B) 2-methyl-2-butene
C) 2-methyl-3-butene
D) None, these are all correct IUPAC names.

Question

Quizplus · Accepted Answer

2-methyl-3-butene is not a correct IUPAC name because the longest carbon chain that includes the double bond would be numbered to give the double bond the lowest possible number, making the correct name 3-methyl-1-butene instead.

Which of the Following Is Not a Correct IUPAC Name