Chapter 5 TREATMENT OF IRON ORES MCQs

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1. . When a solution is heated, the water evaporates and solute:





2. . The solution will dissolve faster on increasing:





3. . If the surface area of solid decreases, the dissolving will be:





4. . Which of the following separation techniques is dependent on difference in volatility?





5. . Which of the following methods are applied to separate oxygen-rich components and nitrogen-rich components?





6. . How is a mixture of iron and copper fillings separated?





7. . The remaining solid on the filter paper is known as:





8. . Sublimation is a technique that helps chemists to:





9. . A mineral is called an ore if:





10. . Bauxite is an oxide ore of:





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