Question

The highest occupied MO in N2 and O2+ respectively are (take x-axis as inter nuclear axis)
options in photo​

Answer 1

The correct answer is option (a). σ$2px,\pi ^{*} 2py$.

• On taking X-axis as the inter nuclear axis, the highest occupied MO (or molecular orbital) in N₂ and O₂⁺ are σ$2px$ and $\pi ^{*} 2py$, respectively.
• The last electron in both N₂ and O₂⁺ enters the 2p subshell.
• The σ orbitals, or sigma orbitals, are produced when the 2px orbitals on one nitrogen atom interact with the 2px orbitals on the other nitrogen atom to form molecular orbitals that possess a shape that is similar to the s orbitals.
• The two 2py orbitals of the oxygen ion overlap sideways or laterally on taking the x-axis as the internuclear axis to form a $\pi ^{*}$ bond.
• The molecular orbitals are made up of atomic orbitals in which the electrons are arranged.

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