Carbon (coke) is commonly used as a reducing agent to obtain metals from their oxides. Highly reactive metals like sodium, calcium, and aluminium can displace metals of lower reactivity from their compounds in displacement reactions, functioning as powerful reducing agents ...

In a solution of an ionic compound in water, ions are present, allowing for the conduction of electricity as charged particles move to the opposite electrodes. Ionic compounds in the solid state do not conduct electricity due to their rigid ...

Elements or compounds occurring naturally in the earth’s crust are called minerals, and those with high metal content suitable for profitable extraction are referred to as ores.

Gold, silver, platinum, and copper are found in the free state. Copper and silver are also found in the combined state as sulphide or oxide ores.

Metals at the top of the activity series are highly reactive and are never found in nature as free elements. Moderately reactive metals (Zn, Fe, Pb, etc.) are found mainly as oxides, sulphides, or carbonates in the earth’s crust.