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Transition and Inner Transition Elements — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryTransition and Inner Transition Elements1 Mark
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Answer

Correct option: D.
$\mathrm{La}(\mathrm{OH})_3(\mathrm{Z}=57)$
(d): The basic nature of hydroxides decreases from La to L.u along the lanthanide series due to lanthanide contraction. Thus, $La ( OH )_3$ is the most basic hydroxide.

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