JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2010

  • question_answer     The gold number of some colloidal solutions are given below
    Colloidal solution Gold number
    A 0.01
    B 2.5
    C 20
    The protective nature of these colloidal solutions follows the order

    A)  \[C>B>A\]         

    B)  \[~A>B>C\]

    C)  \[A=B=C\]         

    D)  \[B>A>C\]

    Correct Answer: B

    Solution :

                    Protective power \[\propto \frac{1}{gold\text{ }number}\] Hence, the correct order of protective nature of these colloidal solution is \[A>B>C\]

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