What type of oxides are formed when non-metals react with oxygen? Explain with an example. (b)What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.

(a) When non-metals react with oxygen, they form acidic oxides and neutral oxides.

Example: When carbon reacts with oxygen it forms carbon dioxide which is acidic oxide and water is formed when hydrogen reacts with oxygen which is neutral.

(b) When metal combines with oxygen, they form basic oxides.

Example: Sodium reacts with oxygen to form a basic oxide called sodium oxide