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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 2

  • question_answer
    From the given following sol, how many can coagulate the haemoglobin sol? \[Fe{{\left( OH \right)}_{3}},Ca{{\left( OH \right)}_{2}},\text{ }Al{{\left( OH \right)}_{3}},\text{ }starch,\text{ }clay,\]\[A{{s}_{2}}{{S}_{3}},CdS,\text{ }basic\text{ }dye\]

    A) 1          

    B) 3                      

    C) 4              

    D) 8

    Correct Answer: C

    Solution :

     [c] Haemoglobin is positively charged sol. Hence the with negative charge can coagulate haemoglobin. starch, clay, \[A{{s}_{2}}{{S}_{3}},\,CdS.\]         


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