Q. 18

Which of the following order of energies of molecular orbitals of N2 is correct?
A. (π2py ) < (σ2pz ) < (π* 2px) ≈ (π* 2py)

B. (π2py ) > (σ2pz ) > (π* 2px ) ≈ (π* 2py )

C. (π2py. ) < (σ2pz ) > (π* 2px) ≈ (π* 2py )

D. (π2py ) > (σ2pz ) < (π* 2px ) ≈ (π* 2py)

Answer :

The Molecular Orbital diagram is different for molecules with 14 or less electrons than the one used for molecules with 15 or more electrons.

For N2 the orbitals in increasing energy are:



(π2py ) < (σ2pz ) < (π* 2px) ≈ (π* 2py)

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