Thermal decomposition of AgNO _ 3 produces two paramagnetic gases....

$2{AgNO}_{3}\left(s\right)\overset{s}{⟶}2Ag\left(s\right) + 2{NO}_{2}\left(g\right) + {O}_{2}\left(g\right)$

Both the ${NO}_{2}$ and ${O}_{2}$ gases are paramagnetic. ${NO}_{2}\left(g\right)$ has $1$ unpaired electron and ${O}_{2}$\left(g\right)$has$2$unpaired electrons. According to MOT, electronic configuration of${O}_{2}$is</p><p>${\sigma}_{1s}^{2}\sigma{*}_{1s}^{2}{\sigma}_{2s}^{2}\sigma{*}_{2s}^{2}{\sigma}_{2{p}_{2}}^{2}{\pi}_{2{p}_{x}}^{2} = {\pi}_{2{\lambda}_{y}}^{2}\pi{*}_{2{p}_{x}}^{1} = \pi{*}_{2{ρ}_{y}}^{1}$</p><p>Total number of electrons present in antibonding molecular orbitals$= 6