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NEET Sample Paper NEET Sample Test Paper-60

  • question_answer
    The coagulation of 200 ml of a positive colloid took place when 0.73 g HCl was added to it without changing the volume much. The flocculation value of HCl for the colloid is:

    A) 0.365                           

    B) 36.5    

    C) 100                              

    D) 150

    Correct Answer: C

    Solution :

    [c] 100 200 mL of the sol. require = 0.73 g HC1 \[=\frac{0.73}{36.5}mol\] \[=0.02mol\] \[=20\,m\,mol\] \[\therefore \,1000mL\,(1L)\,of\,the\,sol.\,will\,require\,\] \[=\frac{20}{200}\times 1000=100m\,\,mol\]


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