Question

Name the metal which is extracted from the calamine ore.

Answer 1

• Occurrence of metals : Metals occur in earth's crust and in sea water, in the form of ores. Earth's crust is the major source of metals. Some metals are found in combined state and some metals are found in free state.
• Mineral : A naturally occurring substance which has uniform composition is called mineral.
• Every mineral may not contain a metal in sufficient quantity. Some minerals can be inaccessible because of geographical or technological factors.
• Ores : Minerals from which a metal can be profitably extracted are called ores.
• The metal which is extracted from the rock calamine is zinc $\left(\mathrm{Zn}\right)$.
• The zinc compound present in this ore is zinc carbonate $\left({\mathrm{ZnCO}}_3\right)$.