How do structural isomers arise?
By the ability of a given formula to give rise to distinct structures.....
Structural isomerism arises from differing connectivity. An organic formula of
As the organic formula becomes larger, the number of possible isomers necessarily increase.
The possibility of isomerism demands the need for an efficient and recognized system of identification that can name a given structural isomer straightforwardly and unambiguously. This is why educators go to such lengths to introduce nomenclature schemes.