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JEE Main2018ChemistryGeneral Principles and Processes of Isolation of MetalsActual

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:

Options

  1. ASO 2
  2. BFe 2 O 3
  3. CCu 2 O
  4. DCO

Correct answer

C. Cu 2 O

Step-by-step solution

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with Cu 2 O . ​ It is an example of auto reduction. Cu 2 S + 2 Cu 2 O   → 6 Cu +   SO 2

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