AP EAMCET · Chemistry · d and f Block Elements
From the list given below, the number of lanthanides which exhibit +4 state in their oxides is Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy
- A 5
- B 4
- C 6
- D 2
Answer & Solution
Correct Answer
(B) 4
Step-by-step Solution
Detailed explanation
\(\mathrm{Pr}, \mathrm{Nd}, \mathrm{Tb}\) and Dy exhibit +4 state in their oxides as they acquire configurations closer to stable \(4 \mathrm{f}^{\circ}\) and \(4 \mathrm{f}^7\) configurations.…
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