Molecular orbital which have higher energy than atomic orbitals is called___________________?
Correct answer: B. Antibonding molecular orbital
- A. Bonding molecular orbital
- B. Antibonding molecular orbital
- C. Hybrid orbital
- D. Super atomic orbital
Explanation
An antibonding molecular orbital results from destructive overlap and lies at higher energy than the combining atomic orbitals. The likely alternative is a bonding molecular orbital, but constructive overlap lowers its energy below that of the atomic orbitals.
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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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