Question

a element x reacts with oxygen​

Answer 1

Answer:

element x reacts with oxygen to give x2o3

Answer 2

Answer:

The compound formed depends on the valency of X.

If the valency of x is +1

Compound formed is X2O

eg - Na2O(Sodium oxide)

If the valency of x is +2

Compound formed  is XO

eg - CaO(Calcium oxide)

If the valency of x is +3

Compound formed is X2O3

eg - Fe2O3(Ferric oxide)

If the valency of x is +4

Compound formed is XO2

eg - MnO2(Manganese oxide)