MCQ
The complex that has highest crystal field splitting energy $(\Delta )$ is
- A$[Co(NH_3)_5(H_2O)]Cl_3$
- B$K_2[CoCl_4]$
- C$[Co(NH_3)_5Cl]Cl_2$
- ✓$K_3[Co(CN)_6]$
✓
Answer
Correct option: D.
$K_3[Co(CN)_6]$
d
As $CN^-$ is a strong field ligand. $K_3[Co(CN)_6]$ will have maximum $‘\Delta ’.$
As $CN^-$ is a strong field ligand. $K_3[Co(CN)_6]$ will have maximum $‘\Delta ’.$
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Propionic acid with $Br_2/P$ yields a dibromo product. Its structure would be
→$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
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{C{H_3} - C - N{H_2}\xrightarrow[\Delta ]{{B{r_2} + KOH}}C{H_3} - N{H_2}}
\end{array}$
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