Question

But-1-ene and but-2-ene are examples of ___

• A. Chain isomerism
• B. Functional isomerism
• C. Position isomerism
• D. Stereo-isomerism

Answer 1

The correct option is C

Position isomerism

Positional isomerism arises due to the difference in the position of the same functional group on the carbon chain but the arrangement of carbon atoms in the chain remains constant. In other words, all other aspects being similar, the functional groups are in different positions on the same carbon chain.