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JEE Advanced2013ChemistryGeneral Principles and Processes of Isolation of MetalsActual

The carbon-based reduction method is NOT used for the extraction of

Options

  1. Atin from S ⁡ n O ⁡ 2
  2. Biron from Fe 2 O ⁡ 3
  3. Caluminium from Al 2 O ⁡ 3
  4. Dmagnesium from MgCO 3 · CaCO 3

Correct answer

C. aluminium from Al 2 O ⁡ 3

Step-by-step solution

Smelting : The process of extracting a metal in the state of fusion is called smelting. In this process the ore is mixed with carbon, obtained after the above reactions and heated in suitable furnace. SnO 2 and Fe 2 O 3 are reduced by C reduction method. Al 2 O 3 and MgCO 3 . CaCO 3 are reduced by electrolytic reduction.

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