A) \[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]
B) \[F{{e}_{2}}[Fe{{(CN)}_{6}}]\]
C) \[F{{e}_{3}}[Fe{{(CN)}_{6}}]\]
D) \[Fe{{[Fe{{(CN)}_{6}}]}_{2}}\]
Correct Answer: A
Solution :
Prussian blue is represented by the formula \[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\] (forric ferro cyanide). Prussian blue and Tumbull's blue are the same compounds. Both have the same compositia but colour of Tumbull's blue is less intense, is IUPAC name is iron (III) hexa cyano ferrate (II)
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