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NEET Chemistry Metallurgy / धातुकर्म Question Bank Self Evaluation Test - General Principals and Process of Isolation of Elements

  • question_answer
    When copper pyrites is roasted in excess of air, a mixture of \[CuO+FeO\] is formed. \[FeO\] is present as impurity. This can be removed as slag during reduction of \[FeO\]. The flux added to form slag is

    A) \[Si{{O}_{2}}\] which is an acidic flux

    B) Limestone, which is a basic flux

    C) \[Si{{O}_{2}}\] which is the basic flux

    D) CaO, which is a basic flux

    Correct Answer: A

    Solution :

    [a] \[FeO+Si{{O}_{2}}\xrightarrow{{}}FeSi{{O}_{3}}.\]


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