The charge on the $[Ag(CN)_2]^-$ complex is:

Which of the following are examples of double salts?
$A$. $FeSO_4 \cdot (NH_4)_2SO_4 \cdot 6H_2O$
$B$. $CuSO_4 \cdot 4NH_3 \cdot H_2O$
$C$. $K_2SO_4 \cdot Al_2(SO_4)_3 \cdot 24H_2O$
$D$. $Fe(CN)_2 \cdot 4KCN$
Choose the correct answer.

The denticity of the organic ligand,biuret,is:

What is an ambidentate ligand?

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

When $AgNO_3$ is added to an aqueous solution of a platinum complex,$1/4$ of the total chlorine content is precipitated. Determine the formula of the platinum complex from the given options.