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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Colloids Emulsion, Gel and Their properties with application

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    The gold number of A, B C and D are 0.04, 0.002, 10 and 25 respectively. Protective power of A, B, C and D are in order                    [DCE 2003]

    A)                 \[A>B>C>D\]    

    B)                 \[B>A>C>D\]

    C)                 \[D>C>B>A\]    

    D)                 \[C>A>B>D\]

    Correct Answer: B

    Solution :

               Protective power \[\propto \frac{1}{\text{Gold number }}\]                                 Hence, the correct order of protective power is \[B>A>C>D\].


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