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  • Which of the following is formed by mixing solution of <img alt="K_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]" src="https://entrancecorner.oncodecogs.com/gif.latex?K_%7B4%7D%5Cleft

Which of the following is formed by mixing solution of K_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] with the solution of \mathrm{FeCl}_{3}?

Option: 1

Ferro-ferricyanide


Option: 2

Ferric-ferrocyanide


Option: 3

Ferri-ferricyanide


Option: 4

None of these


Answers (1)

Upon reaction of Ferric ions and ferrocyanide ions, prussian blue coloration is obtained due to the formation of Ferric ferrocyanide. 

\mathrm{Fe ^{3+}+K_{4}\left[ Fe ( CN )_{6}\right] \rightarrow \underset{Prussian\ Blue}{Fe _{4}\left[ Fe ( CN )_{6}\right]_{3}}+3 K ^{+}}

Hence, the correct answer is Option (2)

Posted by

Kshitij

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