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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2009

  • question_answer
    In which of the following, NH3 is not used?

    A)  Toilers reagent

    B)  Nesslers reagent

    C)  Group reagent for the analysis of IV group basic radicals

    D)  Group reagent for the analysis of III group basic radicals

    Correct Answer: B

    Solution :

    Potassium tetraiodo mercurate (II) ie, \[{{K}_{2}}[Hg{{I}_{4}}]\] dissolves in \[KOH\] solution to give Nesslers reagent. Nesslefs reagent is used to test \[NH_{4}^{+}\] ions.


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