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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

  • question_answer
    Which of the following is the best protective colloid   [UPSEAT 2004]

    A)                 Gelatin (Gold No. = 0.005)

    B)                 Gum arabic  (Gold No. = 0.15)

    C)                 Egg albumin  (Gold No. = 0.08)

    D)                 None of these

    Correct Answer: A

    Solution :

               Protective power \[\propto \frac{1}{\text{Gold number }}\]                                 Thus gelatin is the best protective colloid.


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