The process of extraction of metal from its ores, is known as

The correct option is D

metallurgy

• The mineral that contains either metal or metal compounds in enough quantity that can be extracted easily and profitability is termed as ore.
• Extraction of the metal along with its refining for use is termed as metallurgy. Metallurgy involves four steps, crushing of ore, the concentration of ore, extraction of ore, and refining of ore.

• Elimination of the impurities from ore to extract the metal is termed as enrichment of ore or concentration of ore.
• The process of conversion of concentrated ore into its oxide by heating in a restricted amount of air is termed as calcination.
• Purification involves the conversion of impure metal into pure metal.

Hence, option D is correct. Metallurgy is the extraction of metal from its ores.