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

  • question_answer
    Which is not amphoteric [CPMT 1991]

    A) \[A{{l}^{3+}}\]

    B) \[C{{r}^{3+}}\]

    C) \[F{{e}^{3+}}\]

    D) \[Z{{n}^{2+}}\]

    Correct Answer: C

    Solution :

    All the oxides of \[Fe(FeO,\,F{{e}_{2}}{{O}_{3}}\] and \[F{{e}_{3}}{{O}_{4}})\] are basic in nature.


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