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AIIMS2014ChemistryGeneral Principles and Processes of Isolation of Metals

Slag formed in blast furnace, removes the impurity of

Options

  1. ASiO ₂
  2. BCaO
  3. CCO ₂
  4. DFeO

Correct answer

A. SiO ₂

Step-by-step solution

In the blast furnace, SiO ₂ is removed as calcium silicate. Flux CaO + Gangue (Impurity) SiO ₂ (Slag) CaSiO ₃

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