JEE Main & Advanced Sample Paper JEE Main - Mock Test - 35

  • question_answer
    Ferric ion forms a prussian blue coloured solution with \[{{K}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\] due to the formation of-

    A) \[{{K}_{3}}Fe{{\left( CN \right)}_{6}}\]      

    B)        \[F{{e}_{4}}{{\left[ Fe{{\left( CN \right)}_{6}} \right]}_{3}}\]

    C) \[Fe{{\left( OH \right)}_{3}}\]        

    D)        \[KFe[Fe{{\left( CN \right)}_{6}}]\]

    Correct Answer: B

    Solution :

    [b] \[\underset{\left( Prussian\text{ }blue \right)}{\mathop{F{{e}^{+3}}+{{K}_{4}}[Fe{{(CN)}_{6}}]}}\,\to F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]


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