General Principles And Processes Of Isolation Of Elements

The correct answer is option (A): Malachite
Malachite is a copper carbonate hydroxide mineral ore. It is sticking green and has a banded pattern, making it attractive. The chemical formula for malachite is Cu₂CO₃(OH)₂. It is the ore for secondary copper minerals. Malachite has a perfect cleavage, that is it can be split into thin sheets. Due to the pattern and beautiful color, it is widely used as ornamental items. Apart from this, all the given ores are oxides. Hematite is an iron oxide with a chemical formula of Fe₂O₃. Magnetite is an iron oxide ore with the chemical formula as Fe₃O₄. It is the most common and important iron ore. Zincate generally contain zinc oxide (ZnO).