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MHT CET Medical202623 April 2026Evening ShiftChemistryGeneral Organic ChemistryActual

What type of isomerism is found in but-2-ene?

Options

  1. AChain Isomerism
  2. BPosition isomerism
  3. CGeometrical isomerism
  4. 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

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