Class 10 Chemistry MCQs - Chapter 5
Chemical Industries Trivia Questions & Answers PDF Download - 12
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The Chemical industries Trivia Questions and Answers PDF (chemical industries Quiz Answers PDF e-Book) download Ch. 5-12 to study Grade 10 Chemistry Course. Practice Basic Metallurgical Operations MCQ PDF, Chemical Industries Quiz Questions and Answers to study online school courses. The Chemical Industries Trivia App Download: Free certification app for basic metallurgical operations, petroleum, metallurgical operations test prep for taking online classes.
The Quiz: Ore of mercury is called; "Chemical Industries" App APK Download with answers: Zinc blende; Galena; Cinnabar; 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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