A) \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{3-}}\]
B) \[F{{e}_{2}}{{\left( S{{O}_{4}} \right)}_{3}}\]
C) \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{4-}}\]
D) \[N{{H}_{4}}{{(S{{O}_{4}})}_{2}}.FeS{{O}_{4}}.6{{H}_{2}}O\]
Correct Answer: B
Solution :
\[F{{e}_{2}}{{(S{{O}_{4}})}_{3}}\to 2F{{e}^{3+}}+3SO_{4}^{-2}\].
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