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

  • question_answer
    Which metal represents more than one oxidation state [CPMT 1990]

    A) \[Al\]

    B) \[Na\]

    C) \[Mg\]

    D) \[Fe\]

    Correct Answer: D

    Solution :

    Fe because it belongs to transition series.


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