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The impurities such as soil, sand and rocky matter present along with the ore are called what?
AMineral
BOre
CGangue
DCation
Answer & Solution
Correct answer: C. Gangue
1. Ores contain the metal compound mixed with unwanted matter.
2. These impurities like soil, sand and rocky substances are termed gangue.
3. Removing the gangue is the step called concentration of ores.
4. The ore itself is the useful part, so 'ore' is not the impurity name.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.109_
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