Which of the following alkali metals forms only, the normal oxide , M_(2)O on heating in air ? (where M is the alkali metal).

Which of the following alkali metals forms only, the normal oxide , M_

1.	Which of the following alkali metals forms only, the normal oxide , M_(2)O on heating in air ? (where M is the alkali metal).
Answer» Rb K Li Na SOLUTION :Li FORMS only the NORMAL oxide , `Li_(2)O`.