Answer Happy

A Select the alkenes that can show geometric isomerism (cis/trans isomerism): 1,6-dichloro-3-pentene 2-chloro-3-ethyl-3-pentene 4-bromo-3-methyl-3-octene 1,1-dichloro-2-methyl-1-hexene A) D) cis-4-octene 4-fluoro-1-buttene Which of the following alkenes has the smallest molar heat of hydrogenation (ie, releases the least heat upon hydrogenation-reaction with H₂ and a metal catalyst)? 3-ethyl-4-methyl-3-pentene B) 2-ethyl-4-hexene E) 1-octene 1,2-butendiene C) trans-4-octene