Q. In metallurgy the term "gangue" is used for:
( JEE mains 2022)
1. Contamination of undesired earthy materials.
2. Contamination of metals, other than desired metal
3. Minerals which are naturally occuring in pure form
4.Magnetic impurities in an ore.
Ans:- [A]
Earthy and undesired materials present in the ore, other then the desired metal, is known as gangue.
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