Analytical Chemistry Question 76
Question: Ferric ion forms a prussian blue coloured ppt. due to
[CPMT 1980; BHU 1980; MP PET 1995; Kurukshetra CEE 1998; RPET 1999; MP PMT 2001]
Options:
A) $ K_4Fe{{(CN)}_6} $
B) $ Fe_4{{[ Fe{{(CN)}_6} ]}_3} $
C) $ KMnO_4 $
D) $ Fe{{(OH)}_3} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ 4FeCl_3+3K_4[ Fe{{(CN)}_6} ] $
$ \to \underset{\begin{smallmatrix} Prussian \\ \text{Blue colour} \end{smallmatrix}}{\mathop{Fe_4{{[ Fe{{(CN)}_6} ]}_3}}}+12KCl $
BETA
