When potassium is heated strongly in oxygen,it forms:

The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order:

Chile saltpetre is

Which property of sodium is being used in street lights?

The stability order of oxide,peroxide,and superoxide of alkali metals is:

Which of the following alloys are correctly matched with their uses?
$(i)$ $Li-Mg$ armour plates
$(ii)$ $Cu-Be$ high strength springs
$(iii)$ $Mg-Al$ aircraft construction