Consider the following statements. (I)$La(OH)_{3}$ is the least basic among hydroxides of lanthanides (II) ${Zr}^{4 +}$ and ${Hf}^{4 +}$ possess almost the same ionic radii (III) ${Ce}^{4 +}$ can act as an oxidizing agent Which of the above is/are true?

Question

Dr. Abubacker · Accepted Answer

(d)
The basic character of hydroxides decreases from $La(OH)_{3}$ to $Lu(OH)_{3}$. Due to smaller size of Lu, the Lu— OH bond attains more covalent character.

Q. Consider the following statements. (I)$La(OH)_{3}$ is the least basic among hydroxides of lanthanides (II) ${Zr}^{4 +}$ and ${Hf}^{4 +}$ possess almost the same ionic radii (III) ${Ce}^{4 +}$ can act as an oxidizing agent Which of the above is/are true?

Explanation

Reviewed by Dr. Abubacker

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