Why Alkanes Can’t Do Geometrical Isomerism: Find Out!

Alkenes have carbon-carbon sigma bonds allowing free rotation, unlike pi bonds formed by lateral overlap of 2P orbitals, which restrict rotation. This restriction leads to the existence of stereoisomers, specifically cis and trans isomers, in alkenes with two different groups.

Describe the formation of π bonds in alkenes.

What is the significance of the lateral overlap of 2P orbitals in alkenes?