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CMC Medical CMC-Medical VELLORE Solved Paper-2011

  • question_answer
    The elements present in the core of earth are collectively known as

    A)  lithophiles         

    B)  nucleophiles

    C)  chalcophiles     

    D)  siderophiles

    E)  atmophiles

    Correct Answer: D

    Solution :

                    The elements present in the earths core are collectively called siderophiles. These are found in their native state. These elements generally have a low reactivity and exhibit an affinity to form metallic bonds. e.g., Pt, Ru, Pd, Ir, Os etc.


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