Question

What type of oxides are formed when non-metals combine with oxygen?

Answer 1

When non-metals are combined with oxygen, neutral or acidic oxides are formed.

For example,

\[\ce{\underset{(Non-metal)}{C} + O2 -> \underset{(Acidic oxide)}{CO2}}\]

\[\ce{CO2 + H2O -> \underset{Carbonic acid}{H2CO3}}\]