Identify all the correct statements for Lanth | vedclass

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(B) Due to Lanthanide contraction,the ionic radii decrease from $La^{3+}$ to $Lu^{3+}$.As the size decreases,the polarizing power of the metal ion inc

Vedclass · Accepted Answer

$A, B, C, D$ only

Vedclass · Answer

(B) Due to Lanthanide contraction,the ionic radii decrease from $La^{3+}$ to $Lu^{3+}$.As the size decreases,the polarizing power of the metal ion increases,which increases the covalent character of the $M-OH$ bond. Consequently,the basic strength decreases from $La(OH)_3$ to $Lu(OH)_3$.Chemical reactivity decreases from $La$ to $Lu$ due to the increase in ionization energy and decrease in size.$Zr$ and $Hf$ exhibit similar atomic radii due to the Lanthanide contraction,which makes their chemical properties very similar.Separation of Lanthanides is difficult because their chemical properties are very similar due to the small change in ionic radii.Therefore,statements $A, B, C,$ and $D$ are correct.

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Identify the correct statement from the following:

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