Manipal Engineering Manipal Engineering Solved Paper-2013

  • question_answer
    Each of the following compounds has been dissolved in water to make its\[0.001\,\,M\]solution. Rank them in order of their increasing conductivity in solution (assume\[100%\]ionisation in each case)

    A) \[c<d<a<b\]

    B) \[c<d<b<a\]

    C) \[a<b<c<d\]

    D) \[d<c<a<b\]

    Correct Answer: B

    Solution :

    Greater the number of ions, greater the conduction hence, order of increasing conductivity is                                                                 \[c<d<b<a\] (a)\[[Pt{{(N{{H}_{3}})}_{6}}]C{{l}_{4}}{{[Pt{{(N{{H}_{3}})}_{6}}]}^{4+}}\]                                                           \[+4C{{l}^{-}}=5\]ions (b)\[[Cr{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}[Cr{{(N{{H}_{3}})}_{6}}]+3C{{l}^{-}}=4\]ions (c)\[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]\]                                                                 \[+C{{l}^{-}}=2\]ions (d)\[{{K}_{2}}[PtC{{l}_{6}}]2K+{{[PtC{{l}_{6}}]}^{2-}}=3\]ions


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