A) Ferrous sulphate reacts with \[FeC{{l}_{3}}\]
B) Ferric chloride reacts with \[{{K}_{4}}[Fe{{(CN)}_{6}}]\]
C) Ferrous ammonium sulphate reacts with \[FeC{{l}_{3}}\]
D) Ammonium sulphate reacts with \[FeC{{l}_{3}}\]
Correct Answer: B
Solution :
\[4FeC{{l}_{3}}+3{{K}_{4}}[Fe{{(CN)}_{6}}]\to {{K}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\underset{\text{Prussian}\,\,\text{blue}}{\mathop{+12KCl}}\,\]
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