DUMET Medical DUMET Medical Solved Paper-2011

  • question_answer
    Which can exist both as diastereoisomer and enantiomer?

    A)  \[{{[Pt{{(en)}_{3}}]}^{4+}}\]      

    B)  \[{{[Pt{{(en)}_{2}}ClBr]}^{2+}}\]

    C)  \[{{[Ru{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{0}}\]

    D)  \[{{[PtC{{l}_{2}}B{{r}_{2}}]}^{0}}\]

    Correct Answer: B

    Solution :

    cis-form of complexes of type \[M\,\,{{(AA)}_{2}}BC\](example \[{{[Pt{{(en)}_{2}}ClBr]}^{2+}}\] are optically active. On the other hand transforms are optically inactive due to symmetry. (Unsymmetrical, optically active) and trans- (meso) -form (optically inactive)


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