Question

All ores are minerals while all minerals are not ores because

• A. the metal cannot be extracted economically from all the minerals.
• B. minerals are complex compounds.
• C. the minerals are obtained from mines.
• D. all of these

Answer 1

The correct option is A

the metal cannot be extracted economically from all the minerals.

• Minerals are the naturally occurring substances that consist of compounds of metal along with impurities like stones and other earthly impurities.
• 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), Bauxite (Al₂H₂O₄).
• Due to the presence of undesired substances in minerals, the metals are extracted from ores but not minerals.
• For example, Bauxite and Clay both are minerals of Aluminum (Al). Aluminum can be extracted from Bauxite ore profitability. Hence, Bauxite is the ore of Aluminium and Bauxite is used to extract Aluminium.

Hence, option A is correct.