Question

The main oxides formed on combustion of Li , Na , and K in excess of air are respectively
A. `Li_(2)O , Na_(2)O and KO_(2)`
B. `LiO_(2) , Na_(2)O_(2) and K_(2)O`
C. `Li_(2)O_(3) , Na_(2)O_(2) and KO_(2)`
D. `Li_(2)O , Na_(2)O_(2) and KO_(2)`

Answer 1

Correct Answer - D
Li forms `Li_2O` , Na forms `Na_(2)O_(2)` and K forms `KO_(2)`.