u/Frozzzenflame

Can anyone send me the classification of oxides into acidic, basic and amphoteric. I really get confused about some of the examples like, is Geo2 amphoteric or acidic or is Geo basic or amphoteric.

Cst 1 640

Cst 2 615

Cst 3 612

Cst 4 640

I am stuck between this score and I want to break through this plateau, like scoring 650+. Any tips??