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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

Concentration of sulphide ores are generally done by

Options

  1. AFroth floatation process
  2. BGravity separation
  3. CMagnetic separation
  4. DBy hand picking

Correct answer

A. Froth floatation process

Step-by-step solution

Froth floatation method is based on the fact that the surface of sulphide ores is preferentially wetted by oil while that of gangue is wetted by water.

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