Among Co ^{3+}, Ti ^{2+}, V ^{2+} and Cr ^{2+ | vedclass

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Question

$Co ^{3+}$ can't liberate $H _{2}$.

It has $d ^{6}$ configuration,

Number of unpaired electrons $=4$

$\mu=\sqrt{4 	imes 6}=4.92$ $B.M.$

Vedclass · Accepted Answer

$5$

Vedclass · Answer

$Co ^{3+}$ can't liberate $H _{2}$.

It has $d ^{6}$ configuration,

Number of unpaired electrons $=4$

$\mu=\sqrt{4 	imes 6}=4.92$ $B.M.$

Among $Co ^{3+}, Ti ^{2+}, V ^{2+}$ and $Cr ^{2+}$ ions, one if used as a reagent cannot liberate $H _{2}$ from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is $......B.M$. (Nearest integer)