Q.
How many of the following are inner orbital complex?
i. $CoF _{6}{ }^{3-}$
ii. $CoNH _{3_{6}}{ }^{3+}$
iii. $Mn ( CN )_{6}{ }^{3-}$
iv. $MnCl _{6}{ }^{3-}$
v. $CoC _{2} O _{43}{ }^{3-}$
vi. $Fe ( CN )_{6}{ }^{3-}$
NTA AbhyasNTA Abhyas 2022
Solution:
Complex
Hybridisation
Type
$\left[ CoF _{6}\right]^{3-}$
$sp^3d^2$
Outer orbital complex
$\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$
$d^2sp^3$
Inner orbital complex
$\left[ Mn ( CN )_{6}\right]^{3-}$
$d^2sp^3$
Inner orbital complex
$\left[ MnCl _{6}\right]^{3-}$
$sp^3d^2$
Outer orbital complex
$\left[ Co(C_2O_4)_3\right]^{3-}$
$d^2sp^3$
Inner orbital complex
$\left[ Fe(CN)_{6}\right]^{3-}$
$d^2sp^3$
Inner orbital complex
| Complex | Hybridisation | Type |
|---|---|---|
| $\left[ CoF _{6}\right]^{3-}$ | $sp^3d^2$ | Outer orbital complex |
| $\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}$ | $d^2sp^3$ | Inner orbital complex |
| $\left[ Mn ( CN )_{6}\right]^{3-}$ | $d^2sp^3$ | Inner orbital complex |
| $\left[ MnCl _{6}\right]^{3-}$ | $sp^3d^2$ | Outer orbital complex |
| $\left[ Co(C_2O_4)_3\right]^{3-}$ | $d^2sp^3$ | Inner orbital complex |
| $\left[ Fe(CN)_{6}\right]^{3-}$ | $d^2sp^3$ | Inner orbital complex |