Question:
In KO2, the nature of oxygen species and the oxidation state of oxygen atom are , respectively :1)superoxide and -1/2 2)oxide and
-2
3)peroxide and -1/2 4)superoxide and -1
Answer:
Correct answer is 1) superoxide and -1/2
This is because in KO2, K has oxidation state +1 so O2 has charge -1. Since, 2 atoms of oxygen have -1 charge therefore one atom of oxygen has charge or oxidation state = -1/2.
Such oxygen species O2 having 1- charge is called superoxide.
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