Why is KO_{2} paramagnetic? | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The compound $KO_{2}$ consists of $K^{+}$ and $O_{2}^{-}$ ions. The superoxide ion $O_{2}^{-}$ has $13$ valence electrons. According to molecular

Vedclass · Accepted Answer

Due to the presence of one unpaired electron in the $\pi^{*} 2p$ molecular orbital.

Vedclass · Answer

(B) The compound $KO_{2}$ consists of $K^{+}$ and $O_{2}^{-}$ ions. The superoxide ion $O_{2}^{-}$ has $13$ valence electrons. According to molecular orbital theory,the electronic configuration of $O_{2}^{-}$ is $\sigma 1s^{2}, \sigma^{*} 1s^{2}, \sigma 2s^{2}, \sigma^{*} 2s^{2}, \sigma 2p_{z}^{2}, \pi 2p_{x}^{2} = \pi 2p_{y}^{2}, \pi^{*} 2p_{x}^{2} = \pi^{*} 2p_{y}^{1}$. The presence of one unpaired electron in the $\pi^{*} 2p$ molecular orbital makes $O_{2}^{-}$ paramagnetic.

Why is $KO_{2}$ paramagnetic?

Similar Questions

The correct order of bond length is:

Which pair among the following does not have the same bond order?

Which of the following molecules is not paramagnetic in nature?

Give the electron configuration,magnetic property,bond order,and energy diagram for the Nitrogen $(N_{2})$ molecule.

Which of the following is paramagnetic as well as it has a fractional bond order?

Vedclass Test Series

Exam Paper Generator

Online Exam Module