The denticity of the ligand present in the Fehling's reagent is $..........$.

In which of the following compounds is the oxidation state of $Fe$ zero?

One mole of the complex compound $Co(NH_3)_5Cl_3$ gives $3$ moles of ions on dissolution in water. One mole of the same complex reacts with two moles of $AgNO_3$ solution to yield two moles of $AgCl_{(s)}$. The structure of the complex is

Which of the following is not a chelating agent?

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

Identify the homoleptic complex from the following: