`KO_(2)` exhibits paramagnetic behaviour. This is due to the paramagnetic nature of

Options

A. `KO^(-)`
B. `K^(+)`
C. `O_(2)`
D. Oi

Answer

d

Explanation

Oxygen in KO, exists as `O_(2)` ion
According to molecular orbital theory `O_(2)^(-)` consists of an unpaired `e^(-)` in anti-bonding orbital
`O_(2)^(-)= sigma1s^(2), sigma1s^(2), sigma2s^(2), sigma2s^(2), sigma2p_(z)^(2), pi 2p_(z)^(2) approx. pi^(2)p_(y)^(2),pi 2 p_(y)^(2)=overset(*)(pi)2p_(y)^(2)= overset(*)(pi)2p_(y)^(1)`
Hence, `KO_(2)` is paramagnetic in nature.