The coordination number of copper in cuprammonium sulfate is.....

The molecular formula of potash alum is

$EDTA$ combines with metal cations to form:

In a complex compound, the central metal ion acts as a:

$A$ coordination complex compound of cobalt has a molecular formula containing five ammonia molecules,one nitro group,and two chlorine atoms for one cobalt atom. One mole of this compound produces three moles of ions in an aqueous solution,and upon reacting with an excess of $AgNO_3$,it forms $AgCl$ precipitate. The ionic formula for this complex would be:

Identify a ligand having two donor atoms but uses a pair of electrons of either donor atom to form a coordinate bond.