JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank General Characteristics

  • question_answer
    Which of the following pairs of elements  cannot form an alloy [KCET 2005]

    A) \[Zn,\,Cu\]

    B) \[Fe,\,Hg\]

    C) \[Fe,\,C\]

    D) \[Hg,\,Na\]

    Correct Answer: B

    Solution :

    Mercury has the property of dissolving nearly all metals, forming liquid or solid solutions called amalgams. It amalgamates well with gold, silver and tin, but does not dissolve iron or platinum. Presence of these may result in sickening or flouring of the mercury.


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