Which of the following molecules/ions does no | vedclass

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Question

Total number of electrons found in $O_{2}$ is $16 .$ But in $O_{2}^{2-}$ The total number of electrons is $18 .$ If we take the configuration of $O_{2

Vedclass · Accepted Answer

$O_2^{2-}$

Vedclass · Answer

Total number of electrons found in $O_{2}$ is $16 .$ But in $O_{2}^{2-}$ The total number of electrons is $18 .$ If we take the configuration of $O_{2}^{2-}$ using Molecular orbital Theory we get

$\sigma_{2 \varepsilon}^{2} \sigma_{\star 2 \delta}^{2} \sigma_{2 z}^{2} \pi_{2 x}^{2} \pi_{2 y}^{2} \pi_{\star 2 x}^{2} \pi_{\star 2 y}^{2}$

Thus there are no unpaired electrons.

List $I$ (Molecule Species)	List $I$ ( Property Shape )
$A$ $\mathrm{SO}_2 \mathrm{Cl}_2$	$I$ Paramagnetic
$B$ $NO$	$II$ Diamagnetic
$C$ $\mathrm{NO}_2^{-}$	$III$ Tetrahedral
$D$ $\mathrm{I}_3^{-}$	$IV$ Linear

Which of the following molecules/ions does not contain unpaired electrons?

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