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QJEEM18Ch1d5b: JEE Main 2018 Chemistry - Class 12 JEEM18Ch1d5b Solution: In the extraction of copper from its sulphate ore, metal is…

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

Multiple Choice Options

  • A Fe2O3
  • B Cu2O
  • C SO2
  • D CO

Step-by-Step Verified Solution

2Cu2S  +  3O2   →   2Cu2O  +   2SO2

2Cu2O  +  Cu2S  →  6Cu  +  SO2

It is a example of auto reduction.

First a part of sulphide ore is converted into oxide which then reacts with remaining sulphide to give the metal.

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