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NEET Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Self Evaluation Test - Surface Chemistry

  • question_answer
    Coagulation value of the electrolytes \[AlC{{l}_{3}}\] and \[NaCl\] for \[A{{s}_{2}}{{S}_{3}}\] sol are 0.093 and 52 respectively. How many times \[AlC{{l}_{3}}\] has greater coagulating power than\[NaCl\]?

    A) 930                              

    B) 520

    C) 560                              

    D) None of these

    Correct Answer: C

    Solution :

    [c] \[\frac{Coagulation\,power\,of\,AlC{{l}_{3}}}{Coagulation\text{ }power\text{ }of\text{ }NaCl}\] \[=\frac{\text{ }Coagulation\text{ }value\text{ }of\,NaCl}{Coagulation\,value\,ofAlC{{l}_{3}}}\] \[=\frac{52}{0.093}=559.13\approx 560\]


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