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Which of the following is paramagnetic?...

Which of the following is paramagnetic?

A

`NO^+`

B

`O_(2)^(-)`

C

`CN^(-)`

D

`CO`

Text Solution

Verified by Experts

The correct Answer is:
B
`O_(2)^(-) to sigma1s^(2) sigma^(**)1s^(2) sigma2s^(2) sigma^(**)2s^(2) sigma2p_(z)^(2) pi2p_(x)^(2) =pi2p_(y)^(2), pi^(**)2p_(x)^(2)=pi^(**)2p_(y)^(2)`
It has one unpaired electron and paramagnetic in nature.
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