Chemical Industries Multiple Choice Questions and Answers 12 PDF Download
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MCQ on Chemical Industries Worksheets 12 Quiz PDF Download
MCQ: Ore of mercury is called
- Zinc blende
MCQ: Ore of copper is called
MCQ: Number of carbon atoms per molecule in fuel oil are
- 14 to 20
- 20 to 50
- 50 to 70
- More than 70
MCQ: Process of converting minerals in to oxides is called
MCQ: A solid deposit containing a sufficiently high percentage of a mineral to make extraction of metal economically feasible is called
- Metal oxide
- None of these