Chapter 12, Problem 18P

Interpretation Introduction

Interpretation:

To illustrate the geometrical isomerism in alkenes and cycloalkanes.

Concept Introduction:

Isomers which have the same structure but differ in their spatial arrangement, i.e. have different configurations, are said to be stereoisomers. This type of isomerism is called stereoisomerism and is of two kinds- optical isomerism and geometrical isomerism.

Geometrical isomers are named as cis and trans compounds, respectively, according as identical atoms or groups are on the same side or opposite sides, e.g., but-2-enes.