d and f-Block ElementsMedium
Question
Among the following, the paramagnetic compound is
Options
A.Na2O2
B.O3
C.N2O
D.KO2
Solution
O22- = 
Number of unpaired electrons = 0.
N = N → O Number of unpaired electrons = 0
Number of unpaired electrons = 0
O2- =
Number of unpaired electrons = 1
Thus O2- is paramagnetic.
Hence (D) is correct.
Number of unpaired electrons = 0.
N = N → O Number of unpaired electrons = 0
Number of unpaired electrons = 0 O2- =
Number of unpaired electrons = 1
Thus O2- is paramagnetic.
Hence (D) is correct.
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