Potassium superoxide is a deep blue-purple solid that forms on the surface of freshly cut potassium metal. The superoxide ion has a formula of O 2 – ….

Potassium superoxide is a deep blue-purple solid that forms on the surface of freshly cut potassium metal. The superoxide ion has a formula of O2-. Using this information, which of the following is the best chemical formula for potassium superoxide?

A.KO

B.KO2

C.K2O2

D.K2O