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JEE Main2016ChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which one of the following ores is best concentrated by froth flotation method?

Options

  1. AGalena
  2. BMalachite
  3. CMagnetite
  4. DSiderite

Correct answer

A. Galena

Step-by-step solution

Froth flotation method is used for concentration of sulphide ores. Galena       →       P b S Malachite is Cu 2 CO 3 2 OH 2 Magnetite is Fe 3 O 4 Siderite is FeCO 3

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