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JEE Main2012ChemistryGeneral Principles and Processes of Isolation of MetalsActual

Extraction of zinc from zinc blende is achieved by

Options

  1. Aroasting followed by self-reduction
  2. Belectrolytic reduction
  3. Croasting followed by reduction with carbon
  4. Droasting followed by reduction with another metal

Correct answer

C. roasting followed by reduction with carbon

Step-by-step solution

Extraction of Zn from zinc blends is achieved by roasting followed by reduction with carbon. Reactions involved are : aligned & 2 ZnS +3 O ₂ heat 2 ZnO +2 SO ₂ (Roasting) & ZnO + C ( Coke ) heat Zn + CO (Re duction) aligned

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