Q. Which of the following ions forms most stable complex compound?
A) $Fe^{3 +}$
B) $Mn^{2 +}$
C) $Ni^{2 +}$
D) $Cu^{2 +}$
Explanation
(b)
$Mn^{2 +}$will have half filled more stable $d^{5}$ configuration and without distributing it an outer orbital complex can be formed
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.