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During the extraction of metals from their ores, the removal of gangue is an important preliminary step. Which of the following statements most accurately explains why different concentration methods (such as hydraulic washing, froth flotation and magnetic separation) are used for different ores?
Because gangue particles are chemically reactive and must be removed by oxidation before extraction
Because all ores have identical physical properties but different chemical compositions
Because each method exploits specific differences in physical and chemical properties between the ore and the gangue
Because the choice of concentration method depends on the melting point of the ore and gangue
Because each method exploits specific differences in physical and chemical properties between the ore and the gangue
Practice and solve "During the extraction of metals from their ores, the removal of gangue is an important preliminary s..." for General Science - Previous Year Paper 2025. The correct answer is Option C: Because each method exploits specific differences in physical and chemical properties between the ore and the gangue. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "During the extraction of metals from their ores, the removal of gangue is an important preliminary s..." for General Science - Previous Year Paper 2025. The correct answer is Option C: Because each method exploits specific differences in physical and chemical properties between the ore and the gangue. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.