MCQ
The complex ion which has no $'d'$ electrons in the central metal atom is :
- A$[Co(NH_3)_6]^{3+}$
- B$[Fe(CN)_6]^{3-}$
- ✓$[Cr(H_2O)_6]^{3+}$
- D$[MnO_4]^-$
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$\mathop {\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,C{H_3}}\\
|\\
{C{H_3} - C - OH}\\
|\\
{\,\,\,\,\,\,\,C{H_3}}
\end{array}}\limits_{\rm{I}} $ $\mathop {\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,C{H_3}}\\
|\\
{C{H_3} - CH - OH}
\end{array}}\limits_{{\rm{II}}} $ $\mathop {C{H_3} - C{H_2} - OH}\limits_{{\rm{III}}} $ $\mathop {\begin{array}{*{20}{c}}
{\,\,\,Ph}\\
|\\
{C{H_3} - C - OH}\\
|\\
{\,\,\,\,\,\,\,{\kern 1pt} C{H_3}}
\end{array}}\limits_{{\rm{IV}}} $
$C{H_3}COH\xrightarrow[{{\text{Zn(Hg)/Conc}}{\text{. HCI}}}]{{\left[ H \right]}}C{H_3}C{H_3}$ is