Triphenylphosphine $(PPh_3)$ is a:

Which of the following represents a chelating ligand?

Trioxalato aluminate $(III)$ and tetrafluoro-borate $(III)$ ions are :

The number of ions produced in an aqueous solution by the compound $[Co(NH_3)_4Cl_2]Cl$ is ..........

The coordination number of a central metal atom in a complex is determined by

An excess of $AgNO_3$ is added to $100 \ mL$ of a $0.05 \ M$ solution of tetraaquadichloridochromium$(III)$ chloride. The number of moles of $AgCl$ precipitated will be . . . . . . $\times 10^{-3}$. (Nearest integer)