Question

The octahedral complex ions ${\left[FeC{l}_6\right]}^{3-}$ and ${\left[Fe(CN{)}_6\right]}^{3-}$ are both paramagnetic but the former is high spin and the latter is low spin
Based on the above study, answer the following questions
High spin complex ${\left[FeC{l}_6\right]}^{3-}$ has the d-configuration as

• A. $t_{2g}^3{e}^2$
• B. $t_{2g}^5$
• C. $t_{2g}^2{e}_g^3$
• D. $e_g^5$

Answer 1

Answer: (A)

Correct answer is (a) $t_{2g}^3{e}^2$