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Question: Answered & Verified by Expert
In the molecular orbital diagram for the molecular ion, $\mathrm{N}_2^{+}$, the number of electrons in the $\sigma_{2 p}$ molecular orbital is :
ChemistryChemical Bonding and Molecular StructureJEE MainJEE Main 2018 (15 Apr Shift 1 Online)
Options:
  • A
    $0$
  • B
    $2$
  • C
    $3$
  • D
    $1$
Solution:
1350 Upvotes Verified Answer
The correct answer is:
$1$
Total electrons in $\mathrm{N}_2^{+}=(7 \times 2)-1=13$
$\mathrm{N}_2^{+} \rightarrow \sigma_{1 s^2}, \sigma_{1 s^2}^*, \sigma_{2 s^2}, \sigma_{2 s^2}^*,\left[\pi_{2p_x}^2=\pi_{2 p_y}^2\right] \sigma_{2 p_z}^1$
Number of electron in $\sigma_{2 p_z}$ is $1$.

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