BCECE Medical BCECE Medical Solved Papers-2001

  • question_answer
    The ion present in Nesslers reagent is :

    A)  \[Hg{{I}_{2}}\]

    B)  \[HgI_{4}^{2-}\]

    C)  \[H{{g}^{2+}}\]

    D)  \[H{{g}^{+}}\]

    Correct Answer: B

    Solution :

    Key Idea: Nesslers reagent is used to detect presence of \[N{{H}_{4}}^{+}\] ions in inorganic salt analysis. Nesslers reagent is \[{{K}_{2}}[Hg{{I}_{4}}]\] and it has\[{{[Hg{{I}_{4}}]}^{2-}}\]-ion.


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