JEE Main & Advanced Sample Paper JEE Main Sample Paper-41

  • question_answer
    Which of the following complex ions will not show optical activity?

    A)  \[[Pt(Br)(Cl)(I)(N{{O}_{2}})(Py)N{{H}_{3}}]\]

    B)  \[cis-{{[Co{{(en)}_{2}}C{{l}_{2}}]}^{+}}\]

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

    D)  \[{{[Cr{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{+}}\]

    Correct Answer: D

    Solution :

    For optical activity at least one bidentate ligand should be there. In [a] all ligands are different, hence chiral. Thus, \[{{[Cr{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{+}}\]will not exhibit optical activity.


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