Oxygen is an example of a non-metal.
(a) What type of oxides are formed when non-metals react with oxygen ? Explain with an example. (b) What is the nature of oxides are formed when metals combine with oxygen? Explain with the help of an example.
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is a metal or a non metal. Explain with proper example.