Why lithium forms only lithium oxide and not perioxide or superoxide?

Lithium is normally kept

In which of the following properties did Be shows similarities with Al? a) Both are comparatively stable in air. b) They have no tendency to form peroxide and superoxides. c) Both provide colour to Bunsen flame. d) Both form coloured solution in NH_(3) e) The oxides and hydroxides of both elements are amphoteric.

Why are lithium salts commonly hydrated and those of other alkail metal ions usually anhydrous?

While sulphur dioxide and hydrogen peroxide can act as oxidising as well as reducing agents in their reactions, ozone and nitric acid act only as oxidants, why?

Which one of the following metals forms super oxide?