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NEET Chemistry NEET PYQ-Metallurgy

  • question_answer
    Sulphide ores of metals are usually concentrated by froth flotation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching? [AIPMT (S) 2007]

    A) Argentite

    B) Galena 

    C) Copper pyrite

    D) Sphalerite

    Correct Answer: D

    Solution :

    [d] Galena (PbS), copper pyrite (CuFeS2) and argentite (Ag2S) are concentrated by froth floation process but sphalerite (ZnS) is concentrated by chemical leaching.


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