Why is `KO_(2)` paramagnetic ?

a. Which alkali metal is used as a coolent in nuclear reactor ? b. What is the oxidation state of K in KO_(2) ? c. The E^(Θ) for CI_(2)CI^(Θ) is +1.36 , for I_(2)//I^(Θ) is +0.53 , for Ag^(o+)//Ag is +0.79 , for Na^(o+)//Na is -2.71 and for Li^(o+)//Li is -3.04 . Arrange the following ionic species in decreasing order of reducing strength. I^(Θ), Ag, CI^(Θ), Li, Na d. Why is KO_(2) is paramagnetic ?

KO_(2) is-

ko_(2) is peramagnetic due ot

Explain the following: (a) KO_2 is paramagnetic. (b) Lithium forms oxide, sodium forms peroxide while potassium and rubidium form superoxides. (c) BaO is soluble but BaSO_4 is insoluble in water.

Why NO is paramagnetic?

Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why?

KO_2 is diamagnetic oxide.