Question

The reaction of alkali metals with oxygen produce ________. the reaction of alkali metals with oxygen produce ________. superoxides oxides peroxides all of the above none of the above

Answer 1

all of the above

4Li + O₂ = 2Li₂O lithium oxide

2Na + O₂ = Na₂O₂ sodium peroxide

K + O₂ = KO₂ potassium superoxides

Answer 2

all of the above

Step-by-step explanation:

Alkali metals react with the oxygen to form different types of oxygen compounds which may be oxides, peroxides and superoxides. These oxygen compounds react violently with the water.

The reactions are shown below of the formation of lithium oxide and peroxide.

`4 Li(s) + O_2(g) \rightarrow 2 Li_2O(s)`

`2 Li(s) + O_2(g) \rightarrow Li_2O_2(s)`

The reactions are shown below of the formation of sodium oxide and peroxide.

`4Na(s) + O_2 (g) \rightarrow 2Na_2O (s)`

`2Na(s) + O_2 (g) \rightarrow Na_2O_2 (s)`

The reactions are shown below of the formation of potassium peroxide and superoxide.

`2K(s) + O_2 (g) \rightarrow K_2O_2 (s)`

`K(s) + O_2 (g) \rightarrow KO_2 (s)`

Hence, they produce all, and thus the correct option is :- All of the above