Which of the following hydroxides acts as the | vedclass

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Question

(A) In the lanthanoid series,the basic strength of hydroxides decreases as the atomic number increases from $La$ to $Lu$. This is due to the lanthanoi

Vedclass · Accepted Answer

$La(OH)_3$

Vedclass · Answer

(A) In the lanthanoid series,the basic strength of hydroxides decreases as the atomic number increases from $La$ to $Lu$. This is due to the lanthanoid contraction,which leads to a decrease in ionic radius and an increase in covalent character of the $M-OH$ bond. Since $La^{3+}$ has the largest ionic radius among the given options,the $La-OH$ bond is the most ionic,making $La(OH)_3$ the strongest base.

Which of the following hydroxides acts as the strongest base?

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