Question

write the Extraction of metals​

Answer 1

Answer:

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It is easy to obtain metals from their oxides. So, ores found in the form of sulphide and carbonates are first converted to their oxides by the process of roasting and calcination. Oxides of metals so obtained are converted into metals by the process of reduction.

Answer 2

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Most metals are found in the earth’s crust in the form of their salts, such as carbonates, sulphates, sulphides and oxides.

A few metals are nonreactive and occur in the free state in the earth’s crust, for example, silver, gold, and platinum.

Mineral : A naturally occuring substance found in the earth’s crust containing inorganic salts, solids, siliceous matter etc, is called a mineral.

The mineral which contains high percentage of the metal and from which the metal can be extracted economically is called an ore.