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NEET Sample Paper NEET Sample Test Paper-75

  • question_answer
    The another name of Nessler?s reagent is ammonia kit is obtained by the reaction of KI with mercuric chloride and NaOH solution. Which of the following is known as Nessler?s reagent?

    A)  \[{{K}_{2}}Hg{{l}_{4}}\]                   

    B)  \[{{K}_{2}}Hg{{l}_{4}}+KOH\]

    C)  \[{{K}_{2}}Hg{{l}_{4}}+Hg\]

    D)  \[{{K}_{2}}Hg{{l}_{4}}+{{H}_{2}}\]

    Correct Answer: A

    Solution :

    \[2Kl\,\,+\,\,Hg{{l}_{2}}\, \xrightarrow{{}}~\,\,\underbrace{{{K}_{2}}Hg\,{{l}_{4}}}_{Nessler's\,\,reagent}\]


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