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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

Froth-flotation method is best used for concentrated of which of the following ore?

Options

  1. AGalena
  2. BCassiterite
  3. CMagnetite
  4. DMalachite

Correct answer

A. Galena

Step-by-step solution

Here only Galena is P b S (a sulphide ore). Cassiterite is S n O 2 (oxide ore). Magnetite is F e 3 O 4 (Oxide ore) and Malachite is C u ( O H ) 2 . C u C O 3 (Carbonate ore). The froath floatation process is used to concentrate sulphide ores, based on preferential wetting properties with froating agent and water.

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