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JEE Main & Advanced Sample Paper JEE Main Sample Paper-46

  • question_answer
    The substances, X,Y and Z have coagulation values 3, 0.6, 0.08 for a metal sol respectively. Their flocculating powers are in the ratio,

    A)  1, 0.2, 0.0267            

    B)  0.08, 0.6, 3

    C)  1, 5, 37.5                               

    D)  0.0267, 5, 1

    Correct Answer: C

    Solution :

     Flocculation power \[\propto \frac{1}{Coagulation}value\]. \[\therefore \] For X, flocculation power\[=\frac{1}{3}\] For Y, flocculation power \[=\frac{1}{0.6}\] For Z, flocculation power = \[\frac{1}{0.08}\] \[X & \,\,:\,\,\,\,\,\,\,\,Y:\,\,\,\,\,\,\,\,\,\,\,Z:\] \[\frac{1}{3}:\,\,\,\,\,\,\,\,\frac{1}{0.6}:\,\,\,\,\,\,\,\,\frac{1}{0.08}\] or         \[1:\,\,\,\,\,\,\,\,\,5:\,\,\,\,\,\,\,\,\,37.5\]


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