MCQ
Which of the following ions will have the highest paramagnetic properties?
- A$Cu ^{2+}$
- ✓$Mn ^{2+}$
- C$Zn ^{2+}$
- D$Ti ^{2+}$
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$PhCHO + Ph \cdot CHO \xrightarrow[in\,\,{{D}_{2}}O]{NaOD} A + \begin{matrix} O \\ || \\ Ph-C-{{O}^{-}} \\ \end{matrix}$$\left( Ph\right.$ is $\left.- C _{6} H _{5}\right)$
$\underset{(1)}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}{{O}^{-}}}}\,\,\,\,\,\,\underset{(2)}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}{{S}^{-}}}}\,\,\,\,\underset{(3)}{\mathop{\begin{matrix}
\,\,\,\,\,\,\,O \\
\,\,\,\,\,\,\,\,|| \\
C{{H}_{3}}C{{H}_{2}}C-{{O}^{-}} \\
\end{matrix}}}\,$