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    Which of the following is not a consequence of lanthanide contraction?
    Question

    Which of the following is not a consequence of lanthanide contraction?

    A.

    From La⁺³ to Lu⁺³, the ionic radii changes from 106 pm to 85 pm

    B.

    As the size of the lanthanide ions decreases the basic strength increases

    C.

    The basic character of oxides and hydroxides decreases with increase in atomic number

    D.

    The atomic radii of 4d and 5d series is similar

    Correct option is D

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