Which of the following structures has a center of symmetry (i.e., center of inversion)?

Name: Which of the following structures has a center of symmetry (i.e., center of inversion)?
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Quizplus · Accepted Answer

Structure 3 has a center of symmetry, as each atom has a corresponding atom on the opposite side of the center of the molecule. This means that the molecule can be rotated by 180 degrees around an axis passing through the center of the molecule, resulting in an identical molecule.

Which of the Following Structures Has a Center of Symmetry