STANDARDChemistry-Chemical Bonding and Molecular Structure

STANDARD Chemistry Molecular Orbital Theory MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which of the following statements is not correct from the view point of molecular orbital theory?

A

Be₂ is not a stable molecule.

B

He₂ is not stable but He₂⁺ is expected to exist.

C

Bond strength of N₂ is maximum amongst the homonuclear diatomic molecules belonging to the second period.

D

The order of energies of molecular orbitals in N₂ molecule is σ2s < σ2s < σ2p_z < (π2p_x = π2p_y) < (π2p_x = π2p_y) < σ2p_z

Correct Answer

Option D

Detailed Explanation

The correct order of energies of molecular orbitals in N₂ molecule is KΚσ2s < σ2s < (π2p_x = π2p_y) < σ2p_z < (π2p_x = π2p_y) < σ2p_z.

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