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Basic Metallurgical Operations MCQ (Multiple Choice Questions) PDF Download
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The MCQ: Ore of silicon is called; "Basic Metallurgical Operations" App Download (Free) with answers: Galena; Zinc blende; Cassiterite; Silica; to study online schools courses. Solve Chemical Industries Quiz Questions, download Apple eBook (Free Sample) for free online courses.
Basic Metallurgical Operations MCQs: Questions and Answers PDF Download
Ore of iron is called
- hematite
- chalcopyrite
- bauxite
- halite
Ore of silicon is called
- galena
- zinc blende
- Cassiterite
- silica
Process in which some minerals are converted to the oxide by heating in the air at a temperature below their melting point is called
- roasting
- smelting
- Bessemerization
- concentration
Ore of chromium is called
- galena
- zinc blende
- cinnabar
- chromite
Metallic compounds that occur naturally are called
- metal oxides
- minerals
- ores
- none of above
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