Question

Why are metals not generally found in their free state?

Answer 1

Most of the metals are somewhat highly  reactive in nature. Especially with oxygen . Most of them are found in their oxide state.

Hope that this helps!!!

Answer 2

Most of the metals are found in the form of their compounds, i.e., in the combined state. It is because, their position is above hydrogen in the chemical reactivity series and hence, readily react with air, water, carbon dioxide, etc. They are found in the form of their sulphides, carbonates or oxides.