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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
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Solution
La(OH)2 is less basic than Lu(OH)3
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