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NTA Abhyas JEE Main2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

Which of the following processes involves smelting

Options

  1. AZnCO 3 → ZnO+CO 2
  2. BFe 2 O 3   +   3C → 2Fe   +   3CO
  3. C 2PbS   +   3O 2 → 2PbO   +   2SO 2
  4. DAl 2 O 3 .2H 2 O → Al 2 O 3   +   2H 2 O

Correct answer

B. Fe 2 O 3   +   3C → 2Fe   +   3CO

Step-by-step solution

Reduction with carbon is called smelting Fe 2 O 3   +   3C → 2Fe   +   3CO

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