Carbon acts as a reducing agent by providing electrons to the metal oxide, causing it to lose oxygen and be reduced to its elemental form.

Metal oxides are reduced to corresponding metals by using suitable reducing agents such as carbon. For example, when zinc oxide is heated with carbon, it is reduced to metallic zinc.

During the roasting of zinc ores, the chemical reaction involves the oxidation of zinc sulphide (ZnS) to zinc oxide (ZnO) and sulphur dioxide (SO2) gas. During the calcination of zinc carbonate ores, the chemical reaction involves the decomposition of zinc ...

Calcination is a process in which carbonate ores are heated strongly in limited air. During calcination, the carbonate ores are decomposed, releasing carbon dioxide gas and leaving behind metal oxides.

Roasting is a process in which sulphide ores are heated strongly in the presence of excess air. During roasting, the sulphide ores are oxidized, converting them into metal oxides.

It is easier to obtain a metal from its oxide rather than its sulphides or carbonates because oxides are more readily reduced to metals compared to sulphides and carbonates.

Metals typically found in the middle of the activity series include iron, zinc, lead, and copper.

Yes, cinnabar (HgS) is an ore of mercury. When heated in air, cinnabar is converted into mercuric oxide (HgO). Further heating of mercuric oxide results in its reduction to mercury, the pure metal.

The oxides of metals low in the activity series are typically reduced to metals by heating alone. This process involves heating the metal oxide in the absence of air, causing the oxygen to be removed from the oxide and leaving ...

Separation techniques help in the extraction of metals from ores by selectively separating the gangue materials from the ore based on their differences in physical or chemical properties. This results in a concentrated form of the ore, which can then ...