What do you understand about geometrical isomerism? Explain the geometrical isomers of 2 - butene .

Explanation

Geometrical isomerism (Cis - trans isomerism): The isomers which possess the same structural formula but differ in spatial arrangement of the groups around the double bond are called geometrical isomers and the phenomenon is known as geometrical isomerism, When the same groups lie. on the same side of double bond, it is Cis - isomer, while when the same groups lie on opposite side of double bond, the isomer is trans.