MHT CET Medical202623 April 2026Evening ShiftChemistryGeneral Organic ChemistryActual
What type of isomerism is found in but-2-ene?
Options
- AChain Isomerism
- BPosition isomerism
- CGeometrical isomerism
- DTautomerism
Correct answer
C. Geometrical isomerism
Step-by-step solution
But-2-ene has the chemical structure CH₃-CH=CH-CH₃ . Each carbon atom of the double bond is attached to two different groups, specifically a hydrogen atom and a methyl group. Due to the restricted rotation around the carbon-carbon double bond, it can exist in two different spatial arrangements. These arrangements correspond to the cis and trans isomers. Thus, but-2-ene exhibits geometrical isomerism. Answer: Geometrical isomerism