Question

The process of extraction of metal from its ores, is known as:
A. Concentration
B. Calcination
C. Purification
D. Metallurgy

Answer 1

Hint: In order to answer the question, firstly we have to discuss the whole cycle of the extraction of metal from its ore and then conclude the process name from which the extraction of metal went through.

Complete answer:
The process of extracting metals from their ores is called metallurgy. The process employed in the extraction of the ore depends on the nature of the ore and the impurities present in it.
In our earth’s crust, a huge amount of metals are available. The naturally occurring metallic compounds mixed with sand, soil, and rocks having a definite chemical composition are called minerals. A metallic compound having a generally high grouping of metal and can be utilized to separate specific components in a helpful and affordable manner called metal. Metallurgy definition can be given as the part of science that manages the extraction of metal in their pure structure from their mineral. Metallurgy measure includes the refining of metals and the production of alloys of metals.
The impurities present in the ore, which must be separated to get desired metal from its ore during the cycle of extraction, are called gangue. A substance including the heater to eliminate the gangue present in the metal is called transition. The key steps involved in the metallurgy of metals are:
1. Crushing and grinding of the ore
2. Concentration of the ore
3. Extraction of the crude metal
4. Purification of the metal
Hence, the correct option is (D) Metallurgy.

Note: Carbon is used in metal extraction because it is cheap and readily available ( coke and charcoal are both carbon ). This type of extraction is more affordable than electrolysis. The metal in the metal is supposed to be diminished by response with carbon. An enormous scope for the extraction of tungsten.