JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2009

  • question_answer
        Amalgamation method is used for the extraction of

    A)  noble metals

    B)  alkali metals

    C)  alkaline earth metals

    D)  transition elements

    Correct Answer: A

    Solution :

                    Amalgamation method is used for the extraction of noble metals like silver and gold from their native ores. The finely crushed ore is brought into contact with mercury which takes up the metal forming its amalgam. The metal is then recovered by distilling its amalgam.


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