Q. Among the following ions, which one has the highest unpaired electrons?
A) $\left\lbrack Cr\left( H_{2}O \right)_{6} \right\rbrack^{3 +}$
B) $\left\lbrack Zn\left( H_{2}O \right)_{6} \right\rbrack^{2 +}$
C) $\left\lbrack Fe\left( H_{2}O \right)_{6} \right\rbrack^{2 +}$
D) $\left\lbrack Cr\left( H_{2}O \right)_{6} \right\rbrack^{3 +}$
Explanation
(c)
$\left\lbrack Fe\left( H_{2}O \right)_{6} \right\rbrack^{2 +}\$has four unpaired electrons
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.