$A$ $Pt$ complex of $NH_3$ and $Cl$ that produces four ions per molecule in an aqueous solution is:

The total number of coordination sites in ethylenediaminetetraacetate $(EDTA^{4-})$ is

In $EDTA^{4-}$,the donor atoms are:

Given the molecular formulas of the hexa-coordinated complexes: $(a)$ $CoCl_3 \cdot 6NH_3$,$(b)$ $CoCl_3 \cdot 5NH_3$,$(c)$ $CoCl_3 \cdot 4NH_3$. If the number of coordinated $NH_3$ molecules in $(a)$,$(b)$,and $(c)$ are $6, 5$,and $4$ respectively,the primary valencies in $(a)$,$(b)$,and $(c)$ are:

$A$ monodentate ligand has

The glycinato ligand is ....