An element that forms basic oxides _____?

ایک عنصر جو بنیادی آکسائڈس کی تشکیل کرتا ہے؟

None of these

Basic oxides are formed by metals, typically from Groups 1 and 2 of the periodic table.

Calcium (Ca) is a metal and forms calcium oxide (CaO), which is a basic oxide.