The impurities present in the ore are known by the name

The correct option is C

gangue

C

• The mineral which contains either metal or metal compounds in enough quantity that can be extracted easily and profitability is termed as ore.
• Examples of ore include Cinnabar (HgS) and Bauxite i.e Al₂H₂
• Impurities like sand and soil particles existing in any ore are termed as gangue. Elimination of these impurities from ore to extract the metal is termed as enrichment of ore.

A

• In smelting of ore, flux is added to enhance the mobility and eliminate the unwanted substances in the form of slag.

B

• Ore is the mineral from which metal is extracted economically.

D

• In smelting of ore and combustion processes, the side product generated from unwanted substances is termed as slag.

Hence, option C is correct. Impurities present in the ore are called gangue.