Chemical BondingMedium
Question
Among KO2, AlO2-, BaO2 and NO2+, unpaired electron is present in :
Options
A.NO2+ and BaO2
B.KO2 and AlO2-
C.KO2 only
D.BaO2 only
Solution
KO2- contains O2-ions which contains unpaired electron.
O2- (17) = σls2, σ*ls2, σ2s2, σ*2s2, π2p2x [ π2p2y = π2p2z] π* 2p2y = π* 2p1z
O2- (17) = σls2, σ*ls2, σ2s2, σ*2s2, π2p2x [ π2p2y = π2p2z] π* 2p2y = π* 2p1z
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