Diamagnetic Lanthanoid ions are: (A) Nd3+ and Eu3+ (B) La3+ and Ce4+ (C) Nd3+ and Ce4+ (D) Lu3+ and — JEE Mains Chemistry Past Papers Chemistry Question
Question
Diamagnetic Lanthanoid ions are: (A) Nd3+ and Eu3+ (B) La3+ and Ce4+ (C) Nd3+ and Ce4+ (D) Lu3+ and Eu3+
Answer: B
💡 Solution & Explanation
Ce : [Xe] 4f15d16s2 ; Ce4+ diamagnetic La : [Xe] 4f05d16s2 ; La3+ diamagnetic
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