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NEET2003ChemistryGeneral Principles and Processes of Isolation of MetalsActual

In the extraction of copper from sulphide ore the metal is formed by reduction of Cu ₂ O with

Options

  1. AFeS
  2. BCO
  3. CCu ₂ ~S
  4. DSO ₂ .

Correct answer

A. FeS

Step-by-step solution

Iron has greater affinity for oxygen than copper. gathered Cu ₂ O + FeS FeO + Cu ₂ ~S FeO + SiO ₂ FeSiO ₃ ( slag ) gathered aligned & 2 Cu ₂ ~S +3 O ₂ 2 Cu ₂ O +2 SO ₂ & 2 Cu ₂ O + Cu ₂ ~S auto reduction 6 Cu + SO ₂ . aligned

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