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Among complexes [Fe(H(2)O)(6))]^(3+)", [...

Among complexes `[Fe(H_(2)O)_(6))]^(3+)", [Fe(CN)_(6)]^(3-). [Fe(C_(2)O_(4))]^(3-)`, more stability is shown by

A

`[Fe(H_(2)O)_(6)]^(3+)`

B

`[Fe(CN)_(6)]^(2-)`

C

`[Fe(C_(2)O_(4))_(3)]^(3-)`.

D

`[Fe(Cl)_(6)]^(3-)`

Text Solution

Verified by Experts

The correct Answer is:
C
Complex having more rings in structure will be more stable. Hence, (C) is the correct answer.
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[Fe(H_(2)O)_(6)]^(3+) and [Fe(CN)_(6)]^(3-) differ in

[Fe(H_(2)O)_(6)]^(2+) and [Fe(CN)_(6)]^(4-) differ in :

[Fe(H_(2)O)_(6)]^(2+) and [Fe(CN)_(6)]^(4-) differ in :

Amongst the following , the most stable complex is : (a) [Fe(H_(2)O)_(6)]^(3+) (b) [Fe(NH_(3))_(6)]^(3+) (c) [Fe(C_(2)O_(4))_(3)]^(3-) (d) [FeCl_(6)]^(3-) .

EAN of Fe in [Fe(C_(2)O_(4)_(3)]^(3-) is .

K_(3)[Fe(CN)_(6)]+FeCl_(3) to Fe[Fe(CN)_(6)]darr

Among the following, the most stable complex is (i). [Fe(H_2O)_6]^(3+) (ii). [Fe(NH_3)_6]^(3+) (iii). [Fe(C_2O_4)_3]^(3-) (iv). [FeCl_6]^(3-)

The hybridization states of the central atom in the complexes [Fe(CN)_(6)]^(3-),[Fe(CN)_(6)]^(4-) and [Co(NO_(2))_(6)]^(3-) are:

In the complex K_2Fe[Fe(CN)_6]

Fe(CN)_(2)darr+KCN to K_(3)Fe(CN)_(6)