Question:
The total number of unpaired electrons present in the complex $\mathrm{K}_{3}\left[\mathrm{Cr}(\text { oxalate })_{3}\right]$ is __________________ .
Solution:
(3)
$\mathrm{K}_{3}\left[\mathrm{Cr}(\text { oxalate })_{3}\right]$Chromium is in $+3$ oxidation state. Number of unpaired electrons in $\mathrm{Cr}^{+3}$ will be 3 .
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