JIPMER Jipmer Medical Solved Paper-2015

  • question_answer
    A complex \[PtC{{l}_{4}}.5N{{H}_{3}}\] shows a molar conductance of \[402\,oh{{m}^{-1}}\,c{{m}^{2}}\,mo{{l}^{-1}}\] in water and precipitates three moles of \[AgCl\] with \[AgN{{O}_{3}}\] solution. The formula of the complex is:

    A)  \[[Pt{{(N{{H}_{3}})}_{6}}]C{{l}_{4}}\]

    B)         \[[Pt{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]C{{l}_{2}}\]

    C)         \[[Pt{{(N{{H}_{3}})}_{5}}Cl]C{{l}_{3}}\]

    D)     \[[Pt{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\,Cl\]

    Correct Answer: C

    Solution :

                    The complex \[PtC{{l}_{4}}.5N{{H}_{3}}\]is designated as\[[Pt{{(N{{H}_{3}})}_{5}}Cl]\,C{{l}_{3}}\]which ionizes to\[{{[Pt{{(N{{H}_{3}})}_{5}}Cl]}^{3+}}\]\[+\,3C{{l}^{-}}\]ions. Thus total ions produced are four but three moles of\[AgCl\] are produced from\[3C{{l}^{-}}\] ions with\[AgN{{O}_{3}}\].


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