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

The process that involves the removal of sulphur from the ores is :

Options

  1. ASmelting
  2. BRoasting
  3. CLeaching
  4. DRefining

Correct answer

B. Roasting

Step-by-step solution

In roasting process, metal sulphide ore are converted into metal oxide and sulphur is remove in the form of SO 2 gas. 2 MS + 3 O 2 ⟶ Δ 2 MO + 2 SO 2 ↑

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