Chemistry · Metals and Non-metals
Highly reactive metals are found in a combined state in nature. The natural substances containing metals in combined form are known as minerals. A mineral is called an 'ore' if:
- 1a metal cannot be extracted from it
- 2a metal can be profitably and easily extracted from it✓
- 3a metal can be extracted from it
- 4the metal present in the mineral is costly
Correct answer
a metal can be profitably and easily extracted from it
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