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NEET Chemistry NEET PYQ-The d-and f-Block Elements

  • question_answer
    Which one of the following elements shows maximum number of different oxidation states in its compounds? [AIPMT 1998]

    A) Eu

    B) La

    C) Gd

    D) Am

    Correct Answer: D

    Solution :

    [d] Oxidation state shown by elements are as - \[La=+3\]
                Europium (Eu) and gadolium (Gd) = + 2 and +3 Americum (Am) = + 2, +3, + 4, + 5 and + 6
                Am shows maximum number of different oxidation state due to its larger size and low ionisation energy


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