Chapter 6 PRE-SMELTING TREATMENT OF ORES MCQs 5 min Score: 0 Attempted: 0/5 Subscribe 1. . Concentration separates: (A) Gangue from value (B) Value from gangue (C) Oxides (D) None of theseShow All Answers 2. . Metal concentrate is separated by means of: (A) Gravity only (B) Flotation only (C) Flotation or magnetism (D) Gravity, flotation or magnetismShow All Answers 3. . Sink-float system uses ________ as flotation medium: (A) Acid (B) Alcohol (C) Water (D) None of theseShow All Answers 4. . Flotation method uses: (A) Acid (B) Alcohol (C) Water (D) None of theseShow All Answers 5. . Agglomeration is the process of: (A) Increasing iron content in ores (B) Improving physical structure (C) Magnetism (D) None of theseShow All Answers