The number of water molecule$(s)$ directly bonded to the metal centre in $CuSO_4 \cdot 5 H_2 O$ is

$A$ $200 \ mL$ solution $X$ contains $0.02 \ mol$ of $[Co(NH_3)_5Br]Cl_2$ and $0.02 \ mol$ of $[Co(NH_3)_5Cl]SO_4$. If solution $X$ is treated with excess $AgNO_3$ and excess $BaCl_2$,what will be the number of moles of precipitates $Y$ and $Z$ formed,respectively?

The coordination number of $Fe$ and $Co$ in the complex ions,$[Fe(C_{2}O_{4})_{3}]^{3-}$ and $[Co(SCN)_{4}]^{2-}$ are respectively

Which one of the following is not an ambidentate ligand?

The anti-cancer drug cisplatin contains which of the following ligands?

In the complex $[Pt(en)_2]^{2+}$,the coordination number and oxidation state of the central metal ion are,respectively: