Question:
The potassium ferrocyanide solution gives a Prussian blue colour, when added to :
Correct Option: , 4
Solution:
$\mathrm{FeCl}_{3}+\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] \rightarrow \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$
Prussian blue
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