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Werner theory states that every metal cation has a fixed coordination no. But if we consider K4[Fe(CN)6] and [Fe(Cl)4]^-2 the coordination no. of iron in both cases is different?

Werner theory states that every metal cation has a fixed coordination no. But if we consider K4[Fe(CN)6] and [Fe(Cl)4]^-2 the coordination no. of iron in both cases is different?

Grade:12

2 Answers

Umakant biswal
5359 Points
6 years ago
@ arundhati 
fr can exist in 2 forms , that is +2 state and +3 state , 
so, the two states should have to be considered diffrently , 
and werner theory fails for such compounds , which can exist as two states , 
HOPE IT CLEARS 
ALL THE BEST ..
Arundhati
10 Points
6 years ago
@sir, In the above ques,Fe in both the compounds is in +2state and has different coordination numbers

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