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Among KO2 , AlO(2)^(-) BaO2 and NO2^+ u...

Among ` KO_2 , AlO_(2)^(-) BaO_2` and `NO_2^+` unpaired electron is present in :

A

`NO_2^(+) and BaO_2`

B

`KO_2 and AlO_2^(-)`

C

`KO_2` only

D

`BaO_2` only

Text Solution

Verified by Experts

The correct Answer is:
C
No. of electrons in `KO_2 = 35`
`AlO_2^(-) = 30`
`BaO_2 = 72`
`NO_2^(+) = 22`
Only `KO_2` has odd no. of electrons so it has unpaired electrons.
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