Oxygen shows `+2` oxidation state is

Oxygen has - 2 oxidation state in the compound

Oxygen has - 2 oxidation state in the compound

Oxygen shows oxidation state of -1 in the compound -

Write any two compounds, in which oxygen shows an oxidation state different from -2. Give the oxidation states of oxygen in them.

Write any two compounds, in which oxygen shows an oxidation state different from -2. Give the oxidation states of oxygen in them.

Why does oxygen not show an oxidation state of + 4 and + 6 ?