Question

Which of the following is a principal combination in which copper occurs in nature?

Options

• Sulphides

• Oxides

• Carbonate

• All of the above

Answer 1

All of the above

Explanation:

Copper occurs in nature in several forms, including sulphides, oxides, and carbonates. These are some of the principal combinations in which copper is found, with copper sulphides (like chalcopyrite), copper oxides (like cuprite), and copper carbonates (like malachite) being common copper ores.