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Question
Which one of the following is not correct?
Options
La(OH)2 is less basic than Lu(OH)3
In lanthanoid series ionic radius of Ln3+ ions decreases
La is actually an element of transition metal series rather than lanthanide series
Atomic radii of Zr and Hf are same because of lanthanide contraction
Solution
La(OH)2 is less basic than Lu(OH)3
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