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What is the primary purpose of using a froth floatation process?

Options

  1. ATo control humidity
  2. BTo remove colouring matter
  3. CTo separate inert gases
  4. DTo concentrate low-grade sulphide ore

Correct answer

D. To concentrate low-grade sulphide ore

Step-by-step solution

The paragraph indicates that the froth floatation process is used for concentrating low-grade sulphide ore by separating it from silica and other earthy matter.

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