The number of ions produced when cuprammonium sulfate is dissolved in water is $......$.

Explain the bonding in coordination compounds in terms of Werner's postulates.

Select the correct statement about the given complex $[Co(NH_3)_4Cl_2]Cl$.

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

According to Lewis,the ligands are

$A$ group of atoms can function as a ligand only when