$($At. No. $Mo = 42, Pt = 78)$
where $n=$ number of unpaired electron.
Number of unpaired $e^{-} s$ and corresponding magnetic moments
$1 \rightarrow 1.7$
$2 \rightarrow 2.8$
$3 \rightarrow 3.9$
$4 \rightarrow 4.9$
$5 \rightarrow 5.9$
since $B r^{-}$ is a weak feild ligand, so electrons in $C o^{2+}$ will not pair up.
the complex has $3$ unpaired electrons leaving it paramagnetic in nature.
| સૂચી $- I$ | સૂચી $- II$ |
| $(A)$ $\left[ PtCl _{4}\right]^{2-}$ | $(I)$ $sp ^{3} d$ |
| $(B)$ $BrF _{5}$ | $(II)$ $d ^{2} sp ^{3}$ |
| $(C)$ $PCl _{5}$ | $(III)$ $dsp ^{2}$ |
| $(D)$ $\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$ | $(IV)$ $sp ^{3} d ^{2}$ |
નીચે આપેલા વિકલ્પોમાંથી સાચો જવાબ પસંદ કરો.