KVPY Sample Paper KVPY Stream-SX Model Paper-23

  • question_answer
    Which one of the following compound does not follow EAN rule -

    A) \[{{[Fe{{(CN)}_{6}}]}^{-3}}\]

    B) \[[V{{(CO)}_{6}}]\]

    C) \[{{[Ti{{(\sigma -{{C}_{5}}{{H}_{5}})}_{2}}{{(\pi -{{C}_{5}}{{H}_{5}})}_{2}}]}^{0}}\]

    D) \[{{[Fe{{(CO)}_{2}}{{(NO)}_{2}}]}^{0+}}\]

    Correct Answer: D

    Solution :

    \[Fe{{(CN)}_{{{6}^{-3}}}}=35\]
    \[[V{{(CO)}_{5}}]\,\,V=35\]
    \[{{[Ti\,\,{{(\sigma -{{C}_{5}}{{H}_{5}})}_{2}}{{(\pi -{{C}_{5}}{{H}_{5}})}_{2}}]}^{0}}=34\]
    \[{{[Fe\,{{(CO)}_{2}}{{(NO)}_{2}}]}^{0}}=36\]


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