Question 11.4: Name the following geometric isomers.

The longest chain of carbon atoms in each of the following molecules is highlighted in yellow. The chain must also contain the carbon-carbon double bond. The location of functional groups relative to the double bond is used in determining the appropriate prefix, cis or trans, to be used in naming each of the molecules.

Parent chain: heptene
Position of double bond: 3-
Substituents: 3,4-dichloro
Configuration: trans
Name: trans-3,4-Dichloro-3-heptene

Parent chain: octene
Position of double bond: 3-
Substituents: 3,4-dimethyl
Configuration: cis
Name: cis-3,4-Dimethyl-3-octene