Number of geometrical isomers possible for the given structure is/are _________.

Step-by-step solution

The isomerism that arises when atoms or groups having different spatial arrangements are restricted to rotate around a bond or bonds in a molecule is called geometric isomerism. This restricted rotation mainly occurs in a carbon-carbon double bond. The conditions to form geometrical isomers are- restricted rotation (often involving a carbon-carbon double bond); Presence of two different groups on the left-hand end of the double bond and two different groups on the right-hand end. It is not necessary to have similar