Primary and Secondary valency of $Co$ in the complex compound $[Co(en)_3]Cl_3$ is respectively . . . . . . .

Which of the following complexes contains an ambidentate ligand?

The correct order of the stoichiometries of $AgCl$ formed when $AgNO_3$ in excess is treated with the complexes $CoCl_3 \cdot 6NH_3$,$CoCl_3 \cdot 5NH_3$,and $CoCl_3 \cdot 4NH_3$ respectively is:

Which of the following coordination compounds will yield the maximum amount of $AgCl$ upon reaction with an excess of $AgNO_3$ for $1 \ mol$ of the compound?

The number of neutral molecules or negative groups attached to the central metal atom in a complex ion is called:

Given below are two statements :
Statement $I :$ The identification of $Ni^{2+}$ is carried out by dimethyl glyoxime in the presence of $NH_{4}OH$.
Statement $II :$ The dimethyl glyoxime is a bidentate neutral ligand.
In the light of the above statements,choose the correct answer from the options given below: