Question:

Which of the following does not contain plane of symmetry?

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Absence of plane of symmetry often indicates chirality.
Updated On: Mar 20, 2026
  • trans-1,3 dichloro cyclohexane
  • trans-1,2 dichloro cyclohexane
  • cis-1,2 dichloro cyclohexane
  • trans-1,3 cyclopentane
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The Correct Option is B

Solution and Explanation


Step 1:
Presence of a plane of symmetry makes a molecule achiral.
Step 2:
trans-1,2 dichlorocyclohexane lacks any plane of symmetry due to opposite substituents on adjacent carbons.
Step 3:
Other given structures possess at least one symmetry plane.
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