Which of the following is least basic?
Which of the following is least basic?
A. `La(OH)_3`
B. `Ce(OH)_3`
C. `Lu(OH)_3`
D. `Nd(OH)_3`
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Correct Answer - C
La to Lu, ionic radius decreases. Therefore basic strength of hydroxide decreases from La to Lu. Therefore ,`Lu(OH)_3` is least basic
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