Question

Which of the following pair of transition metal ions are diamagnetic?

• A. $Ti^{2+}$ and $Mn^{2+}$
• B. $Mn^{2+}$ and $Ni^{2+}$
• C. $V^{2+}$ and $Cr^{2+}$
• D. $Co^{2+}$ and $Ni^{2+}$
• E. $Sc^{3+}$ and $Zn^{2+}$

Hint:

$Sc^{3+}$, $Ti^{4+}$, $Zn^{2+}$, and $Cu^{+}$ are common diamagnetic transition metal ions.

Answer 1

Answer: (E)