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Class 12 Chemistry Practice Test: Concentration of Ores
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Avg score: 69% • Most missed: “Which of the following cannot be concentrated by electromagnetic separation?”
Class 12 Chemistry Practice Test: Concentration of Ores
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10 Questions

1. Which of the following cannot be concentrated by electromagnetic separation?
2. Which of the following equipment is used for concentration by hydraulic washing?
3. What is the role of the rotating paddle in froth floatation?
4. Ores obtained from the Earth’s crust are always pure.
5. What is the property of necessary for an ore to be concentrated by electrostatic separation?
6. Which of the following are collectors used in the froth floatation process?
7. Which of the following are collectors used in the froth floatation process?
8. Which of the following equipment is used for concentration by hydraulic washing?
9. Which of the following cannot be concentrated by electromagnetic separation?
10. What is the property of necessary for an ore to be concentrated by electrostatic separation?

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