NEET AIPMT SOLVED PAPER 2001

  • question_answer
                                      Which of the following organometallic compound has \[\sigma \] and \[\pi \] bond?                                       

    A)                 \[[Fe({{\eta }^{5}}-{{C}_{5}}{{H}_{5}}){{ & }_{2}}]\]                                          

    B)                 \[K[PtC{{l}_{3}}({{\eta }^{2}}-{{C}_{2}}{{H}_{4}})]\]         

    C)                 \[{{[Co{{(CO)}_{5}}N{{H}_{3}}]}^{2+}}\]                                

    D)                 \[Fe{{(C{{H}_{3}})}_{3}}\]

    Correct Answer: C

    Solution :

                    \[{{[CO{{(CO)}_{5}}N{{H}_{3}}]}^{2+}}\]. In this complex, Co-atom attached with \[N{{H}_{3}}\] through \[\sigma \] bonding and with CO attached with dative \[\pi \] -bond.     


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