NEET Chemistry Molecular Orbital Theory MCQ Question
Consider a diagram depicting the formation of molecular orbitals from 1s atomic orbitals of two atoms. If the diagram shows one orbital with a nodal plane and one without, how are these orbitals labeled?
σ and σ*
π and π*
σ* and σ
π* and π
Correct Answer
Detailed Explanation
The orbital without a nodal plane is the bonding molecular orbital (σ), and the one with a nodal plane is the antibonding molecular orbital (σ*). This is due to constructive and destructive interference of electron waves, respectively.
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