Which of the following ions is the strongest oxidizing agent? (Atomic Number of $\mathrm{Ce}=58,…

Which of the following ions is the strongest oxidizing agent? (Atomic Number of $\mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{~Tb}=65, \mathrm{Lu}=71$)
  1. $\mathrm{Eu}^{2+}$
  2. $\mathrm{Tb}^{4+}$
  3. $\mathrm{Lu}^{3+}$
  4. $\mathrm{Ce}^{3+}$

Solution

$\mathrm{Tb}^{4+}$ is strongest oxidising agent as it will reduce to $\mathrm{Tb}^{3+}$ (common O.S. of Ln)

Asked in: JEE Main 2025 (24 Jan Shift 1)

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