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NEET Sample Paper NEET Sample Test Paper-5

  • question_answer
    The colour of solution obtained by adding excess \[KI\] in the solution of \[HgC{{l}_{2}}\] is

    A)  orange           

    B)  brown

    C)  red                 

    D)  colourless

    Correct Answer: D

    Solution :

    \[HgC{{l}_{2}}+2KI\xrightarrow{{}}2KCl+\underset{scarlet\,\,ppt}{\mathop{Hg{{I}_{2}}}}\,\] \[Hg{{I}_{2}}+\underset{excess}{\mathop{2KI}}\,\xrightarrow{{}}\underset{colourless\,\,complex}{\mathop{{{K}_{2}}Hg{{I}_{4}}}}\,\]


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