JEE PYQ: Coordination Compounds Question 1
Question 1 - 2021 (16 Mar Shift 1)
The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of $\text{CoCl}_3 \cdot 4\text{NH}_3$ is ____.
(Round off to the Nearest Integer).
Show Answer
Answer: 2
Solution
trans-$\text{CoCl}_3 \cdot 4\text{NH}_3$ is trans-$[\text{Co(NH}_3)_4\text{Cl}_2]\text{Cl}$. Ethylene diamine is a bidentate ligand and ammonia is a monodentate ligand. Overall two ethylene diamine are required to replace all four neutral ligands (ammonia) from the coordination sphere.