BCECE Medical BCECE Medical Solved Papers-2006

  • question_answer
    When dilute aqueous solution of \[AgN{{O}_{3}}\](excess) is added to KI solution, positively charged sol of \[Agl\] is formed due to adsorption of:

    A)  \[NO_{3}^{-}\]

    B)  \[O_{2}^{-}\]

    C)  \[A{{g}^{+}}\]

    D)  \[{{K}^{+}}\]

    Correct Answer: C

    Solution :

    When aqueous solution of \[AgN{{O}_{3}}\] is added to KI solution, positively charged sol of \[AgI\] is obtained due to the adsorption of \[AgI\] ions on \[AgI\]molecules. \[\underset{excess}{\mathop{AgN{{O}_{3}}}}\,+KI\xrightarrow{{}}\underset{\begin{smallmatrix}  \downarrow A{{g}^{+}} \\  [AgI]\,A{{g}^{+}}  \\  positively\text{ }charged\text{ }sol \end{smallmatrix}}{\mathop{AgI}}\,+KN{{O}_{3}}\]


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