Class 10 Chemistry MCQs - Chapter 5
Chemical Industries Trivia Questions & Answers PDF Download - 12
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The Quiz: Ore of mercury is called; "Chemical Industries" App APK Download with answers: zinc blende, galena, cinnabar, and chromite to study online school courses. Practice Basic Metallurgical Operations MCQ Questions, download Kindle eBook (Free Sample) for online school and college.
Chemical Industries Test Questions and Answers PDF Download: MCQ 12
Ore of mercury is called
- galena
- zinc blende
- cinnabar
- chromite
Ore of copper is called
- hematite
- chalcopyrite
- bauxite
- halite
Number of carbon atoms per molecule in fuel oil is
- 14 to 20
- 20 to 50
- 50 to 70
- 70 to 90
The process of converting minerals into oxides is called
- smelting
- reigning
- roasting
- Bessemerization
A solid deposit containing a sufficiently high percentage of a mineral to make extraction of metal economically feasible is called
- metal oxide
- gangue
- ore
- none of above
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