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JEE Main202116 Mar 2021Evening ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which of the following reduction reaction CANNOT be carried out with coke?

Options

  1. AAl 2 O 3 → Al
  2. BZnO → Zn
  3. CFe 2 O 3 → Fe
  4. DCu 2 O → Cu

Correct answer

A. Al 2 O 3 → Al

Step-by-step solution

Reduction of Al 2 O 3 → Al is carried out by electrolytic reduction of its fused salts. ZnO ,   Fe 2 O 3 and Cu 2 O can be reduced by carbon.

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