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Which of the following statements is not correct ?A. `La(OH)_(3)` is less basic then `Li(OH)_(3)`B. In lanthaniode series, ionic radius of `Ln^(3+)` ion decreases.C. La is actually an element of transition series rather than langthaniodes.D. Atomic radius of Zn and Hf are same because of lanthaniode contraction.

Answer» Correct Answer - 1
`La(OH)_(3)` is more basic than `Li(OH)_(3)` . In lanthaniodes the basic character o fhydroxides decreases as the ionic radius decreases.


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