Identify the number of donor groups present in $EDTA$.

What fraction of chlorine can be precipitated by $AgNO_3$ solution from $[Co(NH_3)_5Cl]Cl_2$?

In the complex acetylbromidodicarbonylbis(triethylphosphine)iron$(II)$,the number of $Fe-C$ bond$(s)$ is

One mole of the coordination compound $Co(NH_3)_5Cl_3$ gives $3$ moles of ions upon dissolution in water. Furthermore,one mole of this complex reacts with $2$ moles of $AgNO_3$ solution to produce $2$ moles of $AgCl(s)$. The structure of the complex is:

What are the coordination number and oxidation state of $E$ in the complex $[E(en)_2(C_2O_4)]NO_2$?

Three moles of $AgCl$ get precipitated when one mole of an octahedral coordination compound with empirical formula $CrCl_{3} \cdot 3NH_{3} \cdot 3H_{2}O$ reacts with excess of silver nitrate. The number of chloride ions satisfying the secondary valency of the metal ion is $......$