A) \[La{{(OH)}_{3}}\] is more basic than \[Lu{{(OH)}_{3}}\]
B) \[Z{{r}^{4+}}\] and \[H{{f}^{4+}}\]possess almost same ionic radii
C) \[C{{e}^{4+}}\]can act are reducing agent
D) In lanthanide series, ionic radius of \[L{{n}^{3+}}\] ions increase
Correct Answer: D
Solution :
The ionic and atomic radii decreases from La to Lu due to lanthanoid contraction.
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