Class 10 Chemistry MCQs - Chapter 5
Chemical Industries Quiz Questions & Answers PDF Download - 3
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The Quiz MCQ: Ore of chromium is called; "Chemical Industries" App (iOS & Android) with answers: Zinc blende; Galena; Cinnabar; Chromite; to learn e-learning courses. Study Basic Metallurgical Operations MCQ Questions, download Amazon eBook (Free Sample) for online certificate courses.
Chemical Industries Exam Questions and Answers PDF Download: Test 3
Ore of chromium is called
- galena
- zinc blende
- cinnabar
- chromite
Which of the following is used as a fuel for power stations, factories, and ships?
- diesel
- lubricating oil
- fuel oil
- bitumen
Which of the following is used as a fuel for buses, trucks, and trains?
- diesel
- lubricating oil
- fuel oil
- bitumen
The percentage of nitrogen (N) in urea (CH4N2O) is
- 0.5
- 0.466
- 0.4
- 0.2
Metallic compounds that occur naturally are called
- metal oxides
- minerals
- ores
- none of above
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