what is isomerism

isomers have the same chemical formula, but different molecular structure

same molecular formula but different molecular structure(STRUCTURAL ISOMERS).

many more types of isomers also exist like the positionals and many others.

it is a phenomenon in which compounds have same moleculer formula but different structural formula due to which they posses different physical and chemical properties.......

I THINK YOU ARE NEW TO ORGANIC CHEMISTRY Isomerism is the property of a compound having same molecular formula but differ in arrangement of atoms{means having different structural formula} or it may have different arrangement in 3d space {known as sterioisomers which is brnch of isomer} IT IS VEY IMP TOPIC FOR IIT STUDY PROPERLY