JEE Main & Advanced Chemistry Metallurgy / धातुकर्म Question Bank Roasting and Calcination

  • question_answer
    The final step for the extraction of copper from copper pyrite in Bessemere converter involves the reaction [CPMT 2000]

    A) \[4C{{u}_{2}}O+FeS\to 8Cu+FeS{{O}_{4}}\]

    B) \[C{{u}_{2}}S+2C{{u}_{2}}O\to 6Cu+S{{O}_{2}}\]

    C) \[2C{{u}_{2}}O+FeS\to 4Cu+Fe+S{{O}_{2}}\]

    D) \[C{{u}_{2}}S+2FeO\to 2Cu+2FeCO+S{{O}_{2}}\]

    Correct Answer: B

    Solution :

    In Bessemer converter copper sulphide is partially oxidised to cuprous oxide which further reacts with remaining copper sulphide to form copper and sulphur dioxide. \[C{{u}_{2}}S+2C{{u}_{2}}O\to 6Cu+S{{O}_{2}}\]


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