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JEE Main & Advanced Chemistry Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Question Bank Mock Test - General Principles Processes of Isolation of Elements

  • question_answer
    Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offers an exception and is concentrated by leaching?

    A) Sphalerite         

    B) Galena

    C) Argentite           

    D) Copper pyrites

    Correct Answer: C

    Solution :

    [c] Leaching: This process consists of treating the powdered ore with a suitable reagents (such as acids, bases or other chemicals) which can selectively dissolve the ore but not the impurities. It is used to extract silver metals.


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