Discussion Forum



1)

The correct charge on and co-ordination number of 'Fe' on K3 [Fe(CN)6] is 


A) +2,4

B) +3,6

C) +2,6

D) +3,3

Answer:

Option B

Explanation:

Coordination number of Fe in K3 [Fe(CN)6] is 6 because it is bonded with six CN ligands .

Let x be the oxidation state of Cr

$\therefore$      x+6(-1)=-3

$\therefore$   x=+3