On combustion in excess of air lithium forms mainly …X… sodium forms …Y… while potassium forms …Z…Here, X, Y and Z refer to
A.Oxides, superoxide, peroxides
B.Superoxide, Peroxide, oxide
C.Peroxide, superoxide, oxide
D.Oxide, peroxide, superoxide✓ Correct
Explanation
On combustion in excess of air lithium forms mainly oxide, sodium forms mainly peroxide, while potassium forms mainly superoxides. 2 2 2 2 2 2 2 Li O Li O Na O Na O K O KO -> -> ->