Which of the following is superoxide ?

Which of the following will form superoxide?

The correct order of stability for the following superoxides is

The correct order of stability for the following superoxides is

The correct order of stability for the following superoxides is

Which of the following is the constituent of metal superoxides ?

On hydrolysis of Rubidium superoxide, which of the following products are formed?

Which of the following pairs of elements will give superoxides and peroxides respectively when heated with excess of air ?

Which one of the following compounds is a superoxide?