Why do you think the ozone is formed over the equator? what is the connection between sunlight and ozone formation?

I think the ozone layer forms over the equator because the equator is always rotating closest to the sun and due to this at the equator the sunlight is most intense. When there is strong sunlight it allows and help the oxygen molecules to break into O₃.
The connection of sunlight and ozone formation is that sunlight provides energy to break the bonds of oxygen molecules and thus it helps in formation of ozone.

Reproduction i think