1. Determine which of the following compounds show cis-trans isomerism.
2. Draw and name the cis and trans (or Z and E) isomers of those that do.
(a) hex-3-ene
(b) buta-1,3-diene
(c) hexa-2,4-diene
(d) 3-methylpent-2-ene
(e) 2,3-dimethylpent-2-ene
(f) 3,4-dibromocyclopentene