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JEE Main & Advanced JEE Main Paper (Held On 19 May 2012)

  • question_answer
    Extraction of zinc from zinc blende is achieved By     JEE Main  Online Paper (Held On 19  May  2012)

    A) roasting followed by self-reduction

    B)                        electrolytic reduction

    C)                        roasting followed by reduction with carbon

    D)                        roasting followed by reduction with another metal

    Correct Answer: C

    Solution :

                    Extraction of Zn from zinc blends is achieved by roasting followed by reduction with carbon. Reactions involved are : \[2ZnS+3{{O}_{2}}\xrightarrow[{}]{heat}2ZnO+2S{{O}_{2}}\](Roasting) \[ZnO+C(Coke)\xrightarrow[{}]{heat}Zn+CO\](Reduction)


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