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Which of the following is diamagnetic?...

Which of the following is diamagnetic?

A

`O_2`

B

`O_(2)^(+)`

C

`O_(2)^(-)`

D

`O_(2)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
D
`O_(2)^(2-), 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 no unpaired electron and each orbital is fully filled. So it is diamagnetic in nature.
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