Which type of bond is formed by overlap of p orbitals _______________?
Correct answer: C. Both
- A. Pi
- B. Sigma
- C. Both
- D. Neither
Explanation
Two p orbitals can overlap end-to-end along the internuclear axis to form a sigma bond, or side-by-side to form a pi bond. Therefore p-orbital overlap can produce both types of bond, depending on its orientation. Students may choose a by remembering only the sideways p-p overlap used in pi bonding.
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About Sigma and Pi Bonds
A sigma bond forms by direct end-to-end overlap along the internuclear axis, whereas a pi bond forms by sideways overlap of parallel orbitals. The topic covers single, double and triple bonds, bond composition, restricted rotation and the relation between sigma and pi bonding and orbital hybridisation.
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