The homoleptic and octahedral complex of and has __________ unpaired electron(s) in the set of orbitals. [2023]

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Solution

Q.
The homoleptic and octahedral complex of ${Co}^{2 +}$ and $H_{2} O$ has __________ unpaired electron(s) in the $t_{2 g}$ set of orbitals. [2023]

Ans.
(1)

${[Co {(H_{2} O)}_{6}]}^{2 +}; {Co}^{2 +} = d^{7} \Rightarrow t_{2 g}^{2, 2, 1} e_{g}^{1, 1}$

$Number of unpaired electrons in t_{2 g} orbitals = 1$

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