Question

The hybridisation involved in $\left[ Co \left( C _{2} O _{4}\right)_{3}\right]^{3-}$ is:

• A. $sp ^{3} d ^{2}$
• B. $sp ^{3} d ^{3}$
• C. $dsp ^{3}$
• D. $d ^{2} sp ^{3}$

Answer 1

Answer: (D)

$\left[ Co \left( C _{2} O _{4}\right)_{3}\right]^{3-} \Rightarrow x+3(-2)=-3 $

$x-6=-3 $

$ x=-3+6 $

$ x=+3 $

$Co^{3+}=$

$C_{2}O_{4}^{2-}$ is a strong ligand, pairing occurs



$\therefore $ The hybridization is $d ^{2} sp ^{3}$