Chemistry - CHEMICAL BONDING Question with Solution | TestHub

For ${\mathrm{KO}}_2,{\mathrm{O}}_2^{-}$has unpaired $e^{-}\Rightarrow$ paramagnetic $$\begin{array}{c}{\mathrm{O}}_2^{-}\text{: Total }{e}^{-}s=16+1=17\\ \sigma 1s^2,{\sigma }^{\ast }1s^2\sigma 2s^2,{\sigma }^{\ast }2s^2,\sigma 2p_z^2\pi 2p_x^{1+1}\\ =\pi 2p_y^{1+1},{\pi }^{\ast }2p_x^{1+1}=\pi 2p_y^1\end{array}$$