Appeared in: 2026 (3 sets)
(a) Write IUPAC names of the following coordination compounds :
(i) $[\text{Ag}(\text{NH}_3)_2] [\text{Ag}(\text{CN})_2]$
(ii) $\text{K}_3[\text{Fe}(\text{C}_2\text{O}_4)_3]$
OR
(b) (i) Give a chemical test to show that $[\text{Co}(\text{NH}_3)_5\text{SO}_4]\text{Cl}$ and $[\text{Co}(\text{NH}_3)_5\text{Cl}]\text{SO}_4$ are ionisation isomers.
(ii) What is meant by the ‘Chelate effect’ ? Give an example.