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JEE Main & Advanced Sample Paper JEE Main Sample Paper-9

  • question_answer
    In   the   complexes  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}},{{[Fe{{(CN)}_{6}}]}^{3-}}.\]\[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]and \[{{[FeC{{l}_{6}}]}^{3-}}\]more stability is shown by

    A)  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}}\]     

    B)  \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]

    C)  \[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]       

    D)  \[{{[FeC{{l}_{6}}]}^{3-}}\]

    Correct Answer: C

    Solution :

    More basic and chelate forming ligand stabilises the complex to more extent. \[{{C}_{2}}{{O}_{4}}^{2-}\] bidentate chelating ligand hence stabilises the complex \[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]to a high extent.


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