The most stable form of glucose is the chair conformation. In the chair conformation, the glucose molecule adopts a stable, three-dimensional form that minimizes steric clashes between atoms. This form is the most energetically favorable and commonly found in nature, particularly in polysaccharides like starch and cellulose.
Which of the following compounds can exhibit geometrical isomerism, and why?
1) 2-butene
2) 1-butene ?
3) Pent-2-ene
4) But-2-yne