Question

Geometrical isomerism is a type of________

Answer 1

Geometrical isomerism -

1. It's a type of Stereoisomerism which means having the same molecular formula and same structure but differing in the relative arrangement of atoms.
2. Geometrical isomers differ in spatial arrangement of atoms
3. The two most common types of geometric isomers are those arising from a double bond and those arising from a ring structure. These types of geometric isomers are also called cis/trans isomers.
4. When two identical groups occupy adjacent positions, the isomer is called the cis isomer.
5. When arranged opposite to one another, the isomer is called a trans isomer.
6. An example of geometric isomerism is seen in But-2-ene.

In one case, the ${\mathrm{CH}}_3$ groups are on opposite sides of the double bond, and in the other case, they are on the same side.

Hence, Geometrical isomer is a type of Stereoisomerism.