Question

What's the correct IUPAC name of the structure shown?
A. Methylhexene
B. 4-methylhex-1-ene
C. Hex-1-ene
D. 3-methylhex-5-ene​

Answer 1

Answer:

B.  4-methylhex-1-ene

Explanation:

There are 6 carbons for the main molecule of 1-hexene.  They are counted from the first (1) on the terminal C with the double bond (ene).  A methyl group is hanging on carbon number 4, so it is the 4-methyl.

4-methylhex-1-ene.