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The d- and f-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d- and f-Block Elements1 Mark
Question
$La ( OH )_3$ is more basic than $Lu ( OH )_3$, why?
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Answer

From La to Lu , the alkaline nature of hydroxide decreases because their ionic radius decreases, hence $La ( OH )_3$ is more basic than $Lu ( OH )_3$.

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