11Vishal turns blue bull is ferrous ferricyanide that means inner iron in the coordination sphere has oxidation state +3........
Colours in complexes are decided by the constituents of the coordination sphere, right? So why do K4[Fe(CN)6] and Fe2[Fe(CN)6] differ in colour though coordination sphere is intact?
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11
1ye wahi to hai andar wala Fe3+ hai
oops written at same time:)
11if the central iron atom is Fe3+ then, the compound should be Fe3[Fe(CN)6]... and not Fe2[Fe(CN)6]....
11Andar wala +3 kaise ho sakta hai, yaar? Andar ek aur bahar do, sare Fe +2 me hi hain. teek se dhek
11Aragorn, actually it was to contradict the vishal's point.......
check my previous posts......
11Did u get the question, Sunil? Coz i've not understood most of ur replies [2]
11actually this compound Fe2[Fe(CN)6] doesn't exits it is Fe3[Fe(CN)6] which exists.........
1okay sunil bt wat bout
Zn2[Fe(CN)6] &Cu2[Fe(CN)6]
they both exist
11I checked it on net try searching for it. u'll not get any information on it...
Try it....
1@ ani its Fe3[Fe(CN)6]2
which exist & is called turn bull's blue
11so what i said was correct??
the colour of the complex depends on splitting of d-orbital which depends on the oxidation state of central metal ion........
11dudes just let me think now..........
U came up wid the same problem and this thread is now restarted.....
11Gdnt, vishal!
Well, Sunil. Q has been the same since I posted it. Everyone's just got confused with the wordings and the other replies! [1]
11PPL, PLEASE POST THE ANSWER B4 I LEAVE[2]. I DON'T WANT THIS THREAD TO BECOME AN EXTINCT AND UNANSWERED ONE. LOT OF REPLIES BUT NO ANSWERS. [2]
9im not sure jus guessing that
though coordination sphere is same , the outer surrounding elements are diff so during charge transfer , they may have diff effects
ne way dont worry to much abt this q , its not toatall relevent to jee syllabus , so we may not be in position to ans
9or it may turn out that in sol the ions dissociate and colour is due to these ionic interactions
1i think it cn be linked with ionisation isomerism smhw...........bt i m nt sure..........i cldn't see any other reason..........