All ores are minerals, while all minerals are not ores, because

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 are correct

Tardigrade Admin · Accepted Answer

For extraction of metal only those minerals are used (ores) for which the process is economic.

Q. All ores are minerals, while all minerals are not ores, because

the metal cannot be extracted economically from all the minerals

minerals are complex compounds

the minerals are obtained from mines

All of these are correct

For extraction of metal only those minerals are used (ores) for which the process is economic.