Which of the following will show geometrical isomerism?

• A

  but-1-ene
• Correct answer
  B

  but-2-ene
• C

  2, 3-dichlorobutane
• D

  ethene

Solution

But-2-ene will show geometrical isomerism. It has following two isomers.

Hence, the correct answer is option: 'B'.