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JEE Main2008ChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which of the following factors is of no significance for roasting sulphide ores to the oxides and not subjecting the sulphide ores to carbon reduction directly?

Options

  1. AMetal sulphides are thermodynamically more stable than CS ₂
  2. BCO ₂ is thermodynamically more stable than CS ₂
  3. CMetal sulphides are less stable than the corresponding oxides
  4. DCO ₂ is more volatile than CS ₂

Correct answer

A. Metal sulphides are thermodynamically more stable than CS ₂

Step-by-step solution

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