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JEE Main 202524 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
24 January
Shift
Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2025 · 24 January · Morning Shift · Chemistry · d and f Block Elements

Which of the following ions is the strongest oxidizing agent?...

Which of the following ions is the strongest oxidizing agent? (Atomic Number of Ce=58,Eu=63, Tb=65,Lu=71\mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{~Tb}=65, \mathrm{Lu}=71 )

Options

  1. AEu2+\mathrm{Eu}^{2+}
  2. BTb4+\mathrm{Tb}^{4+}
  3. CLu3+\mathrm{Lu}^{3+}
  4. DCe3+\mathrm{Ce}^{3+}

Correct answer

B. Tb4+\mathrm{Tb}^{4+}

Step-by-step solution

Tb4+\mathrm{Tb}^{4+} is strongest oxidising agent as it will reduce to Tb3+\mathrm{Tb}^{3+} (common O.S. of Ln)
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