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NTA Abhyas NEET2020ChemistryGeneral Principles and Processes of Isolation of MetalsPractice

In the metallurgy of copper, metallic copper is finally formed in the furnace by the reactions

Options

  1. AC u S + O 2 → C u + S O 2
  2. BC u 2 S + O 2 → 2 C u + S O 2
  3. C2 C u 2 S + 3 O 2 → 2 C u 2 O + 2 S O 2 C u 2 S + 2 C u 2 O → 6 C u + S O 2
  4. D2 C u S + 3 O 2 → 2 C u O + 2 S O 2 2 C u O + C u S → 3 C u + S O 2

Correct answer

C. 2 C u 2 S + 3 O 2 → 2 C u 2 O + 2 S O 2 C u 2 S + 2 C u 2 O → 6 C u + S O 2

Step-by-step solution

Self reduction 2 C u 2 S + 3 O 2 → 2 C u 2 O + 2 S O 2 C u 2 S + 2 C u 2 O → 6 C u + S O 2

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