2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2008

  • question_answer
    The number of moles of lead nitrate needed to coagulate 2 moles of colloidal\[[AgI]{{I}^{-}}\]is

    A) 2                                             

    B) 1

    C) 1/2                        

    D)        2/3

    E)  5/2

    Correct Answer: B

    Solution :

    In lead nitrate, lead is present as\[P{{b}^{2+}}\]ion. While there is only one negative ion per mole of colloid. Hence, one mole\[P{{b}^{2+}}\]can coagulate two moles of\[[AgI]{{I}^{-}}\].


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