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Arrange the following in order of decrea...

Arrange the following in order of decreasing number of unpaired electrons `:`
i. `[Fe(H_(2)O_(6))]^(2+)`
ii. `[Fe(CN)_(6) ]^(3-)`
iii. `[Fe(CN)_(6)]^(4-)`
iv. `[Fe(H_(2)O)_(6)]^(3+)`

A

IV,I,II,III

B

I,II,III,IV

C

III,II,I,IV

D

II,III,I,IV

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The correct Answer is:
A
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Coordination compounds plays many important roles in animals and plants. The are essential in the storage and transport of oxygen as electrons transfer agents as catalysts and in photosynthesis Wide range of application in daily life takes place through formation of complexes Photographic fixing qualitative and quantitative analysis purification of water metallurgical extraction are some specific worth mentioning Arrange of the following in order of decreasing number of unpaired electrons (I) [Fe(H_(2)O))_(6)]^(2+) (II) [Fe(CN)_(6)]^(3-) (III) [Fe(CN)_(6)]^(4-) (IV) [fe(H_(2)O)_(6)]^(3+) (a) IV,I,II,III (b) I,II,III,IV (c) III,II,IIV (d) II,III,I,IV .

[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 :

The hybridisation and unpaired electrons in [Fe(H_(2)O)_(6)^(2+)] ion are :

Arrange the following complexes in order of increasing crystal field splitting . [Fe(H_(2)O)_(6)]^(2+),[Fe(H_(2)O)_(6)]^(3+) , [FeCl_(6)]^(4-) .

The EAN of iron in [Fe(CN)_(6)]^(3-) is

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

With the help of crystal field theory, predict the number of unpaired electrons in [Fe(H_2O)_6]^(2+)

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

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