BHU PMT BHU PMT (Mains) Solved Paper-2011

  • question_answer
    When mercuric iodide is added to the aqueous solution of potassium iodide, the

    A)  freezing point is raised

    B)  freezing point is lowered

    C)  freezing point does not change

    D)  boiling point does not change

    Correct Answer: B

    Solution :

    Sol.         \[Hg{{I}_{2}}\]although insoluble in water but shows complex formation with potassium iodide and therefore freezing point decreases.


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