Chemistry - Halogen Derivative Question with Solution | TestHub

The restricted rotation of atoms or groups around the doubly bonded carbon atoms gives rise to different geometries of such compounds. The stereoisomers of this type are called geometrical isomers.

In alkenes, among the double-bonded carbon atoms, if any of the carbon atoms is attached to two similar types of groups through its other two single bonds, it can not show geometrical isomerism. Since the given compound has two methyl groups attached to the same carbon (as shown below), it can not show geometrical isomerism.

An asymmetric carbon atom is the one which is attached to four different groups through all its four valencies. If the compound contains one asymmetric carbon, it is said to be chiral and will show optical isomerism. The given compound has one asymmetric carbon (as shown below) and thus will show optical isomerism.