$A$ ligand is a

Ethylene diaminetetraacetate $(EDTA^{4-})$ ion is:

How can the coordination number of a metal atom in a complex be determined?

Which among the following complexes is a neutral complex?

Total number of moles of $AgCl$ precipitated on addition of excess of $AgNO_3$ to one mole each of the following complexes $[Co(NH_3)_4Cl_2]Cl$,$[Ni(H_2O)_6]Cl_2$,$[Pt(NH_3)_2Cl_2]$ and $[Pd(NH_3)_4]Cl_2$ is $...............$ (in $.00$)

Explain the classification of ligands on the basis of charge.