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JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Compounds of Transitional Elements

  • question_answer
    A copper coin is completely covered with a gold film and is placed in dilute \[HN{{O}_{3}}\]. This will result in formation of [CPMT 1981]

    A) Gold nitrate

    B) Copper nitrate

    C) None of these

    D) Purple of cassins

    Correct Answer: C

    Solution :

      None of the above. Since, gold is a noble metal and common acids do not attack on it if used singly.


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