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Which of the following statement is not correct form the view point of molecular orbital theory?

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a
Be2 is not a stable molecule
b
He2 is not stable but He2+ it 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<σ∗2s<σ2pz<(π2px≈π2py<π*2px≈π*2py<σ*2pz

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detailed solution

Correct option is D

Option (d) is incorrect, The correct order of energies of molecular orbitals in N2 molecule isσ2s<σ∗2s<π2px≈π2py<σ2pz<π∗2px                                     ≈π∗2py<σ∗2pz

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