Chemistry - CHEMICAL BONDING Question with Solution | TestHub

MO electronic configuration of${\text{O}}_2$is

$\sigma 1{\text{s}}^2\text{, }\sigma 1^{*}{\text{s}}^2\text{, }\sigma 2{\text{s}}^2\text{, }\sigma 2^{*}{\text{s}}^2$

$\sigma 2{\text{p}}_{\text{z}}^2\text{, }\pi 2{\text{p}}_{\text{x}}^2\text{, }\pi 2{\text{p}}_{\text{y}}^2\text{, }\pi 2^{*}{\text{p}}_{\text{y}}^1\text{, }\pi 2^{*}{\text{p}}_{\text{x}}^1$

Due to presence of unpaired electron in ABMO$\pi \stackrel{*}{2}\text{px}$&$\pi \stackrel{*}{2}\text{py}$behaves paramagnetic.