Question

What is the coordination number of iron in potassium trioxalatoferrate(3?

Answer 1

Answer:

6

Explanation:

K3[Fe(ox)3] is the formula for potassium trioxalatoferrate(III)

Here Fe is bonded with (C2O4--), which is a bidentate ligand

Hence CN of Fe=2x3=6

Answer 2

The coordination number of iron in potassium trioxalatoferrate(III).

Explanation:

Coordinate bond : is a bond in which sharing of electrons occur but not mutual sharing . In this the shared pair is donated by only one atom and the one that donates is donor and the other is acceptor.

It consist of central metal atom , counter ion and ligands attached .

COORDINATION NUMBER : it is the number of ligands bonded with the central metal atom  .

FOR EXAMPLE : IN [Ag(CN)₂]- “ the no. Of ligands attached are 2 therefore coordination no. is 2 “.

Similarly , in the above asked question : The coordination compound given is : K₃[Fe(ox)₃]

Nature of ligands : Their  nature is determined by the property denticity  

Denticity

It is  determined the total number of donor atoms in a molecule .

On the basis of the property denticity, ligands are :

Monodentate /unidendate : is that which has one donor atom

Didentate : if it has two donor atoms  

Examples  :  (OXALATE ION )

Therefore , in the given compound K₃[Fe(ox)₃] coordination number is 6.