Question

The hybridisation involved in ${\left[Co{\left(C_2{O}_4\right)}_3\right]}^{3-}$ is:

• A. $s{p}^3{d}^2$
• B. $s{p}^3{d}^3$
• C. $ds{p}^3$
• D. $d^{2}s{p}^3$

Answer 1

Answer: (D)

${\left[Co{\left(C_2{O}_4\right)}_3\right]}^{3-}\Rightarrow x+3(-2)=-3$

$x-6=-3$

$x=-3+6$

$x=+3$

$C{o}^{3+}=$

$C_2{O}_4^{2-}$ is a strong ligand, pairing occurs



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