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Which one of the following has no unpair...

Which one of the following has no unpaired electrons ?

A

`O_2`

B

`O_(2) ^(-)`

C

`O_(2)^(+)`

D

`O_(2)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
D

So `O_(2)^(2-)` , all electrons are paired .
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