Question

Li2O , KO2 which is paramagnetic and why

Answer 1

here is your answer -

KO2 is paramagnetic because the oxygen atoms in KO2 bear -½ oxidation state and they also behave as a free radical species, having an unpaired electron.

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Answer 2

KO2 is a superoxide in which , only one electron is released from the dioxygen atom and a superoxide ion is represented as 02 .

KO2 is a superoxide which contains odd

number of electrons ( unpaired

electrons ) . Thus Ko2 is paramagnetic .