BVP Medical BVP Medical Solved Paper-2015

  • question_answer
    When hard water is passed through permutit, which ions are exchanged with \[III<I<IV<II\]and \[I<IV<II<III\]?

    A)  \[\text{I}<III<II<IV\]                     

    B)  \[I>III>IV>II\]

    C)  \[FeC{{r}_{2}}{{O}_{4}}\xrightarrow{I}N{{a}_{2}}Cr{{O}_{4}}\xrightarrow{II}C{{r}_{2}}{{O}_{3}}\xrightarrow{III}Cr\]                               

    D)  All of these

    Correct Answer: C

    Solution :

                     The sodium ions of permit it are exchanged with calcium and magnesium ions when hard water is passed through it. \[3.0\] \[11.0\] \[10.0\] \[\overset{O}{\mathop{\overset{||}{\mathop{C{{H}_{3}}-C-C{{H}_{2}}-C{{H}_{2}}-COOH}}\,}}\,\]


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