The formula for iron $(III)$ hexacyanoferrate $(II)$ is ..........

What fraction of chlorine will be precipitated as $AgCl$ by using $AgNO_3$ from $[CrCl(NH_3)_5]Cl_2$?

Explain the following term with an example: Pentadentate ligands.

Ethylenediamine $(en)$ is a:

Which of the following statements is incorrect for $EDTA$?

Give the chemical formulas for the following compounds:
$(i)$ Ammonium molybdate
$(ii)$ Ammonium phosphomolybdate
$(iii)$ Ferric thiocyanate ion
$(iv)$ Sodium sulphide