Question

example for superoxide

Answer 1

Generally group no.1 elements including K and the other successive elements form superoxides. The superoxide ion is (O2)^2-
Here are some examples
KO2, RbO2 etc

Answer 2

https://m.youtube.com/watch?v=P7IzuI_p7IE
Oxide, Peroxide, or Superoxide 006 - YouTube
https://en.m.wikipedia.org/wiki/Superoxide
Superoxide - Wikipedia
https://www.britannica.com/science/superoxide
Superoxide | chemical compound | Britannica.com
see on the given side