Which of the following methods is based on the principle of the di | Filo
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Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

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Which of the following methods is based on the principle of the difference in the wetting properties of the ore and gangue particles with water and oil?

  1. Magnetic separation
  2. Froth floatation process
  3. Hydraulic washing
  4. None of these
Correct Answer: Option(b)
Solution: Principle involved in the froth floatation method is the difference in the wetting properties of the ore and the gangue particles. The sulphide ore particles are preferentially wetted by oil while gangue particles are preferentially wetted by water.
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general principles and processes of isolation of elements
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