MCQ
Amongst the following species, maximum covalent character is exhibited by
- A$FeCl_2$
- B$ZnCl_2$
- ✓$HgCl_2$
- D$CdCl_2$
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$\begin{array}{*{20}{c}}
{O = C - C{H_2} - CH - CHO} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,H - C = O\,\,}
\end{array}$