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JIPMER Jipmer Medical Solved Paper-2005

  • question_answer
    Ratio of molecular weights of A and B is \[\frac{4}{25}\] then ratio of rates of diffusion will be:

    A)  5 : 1                      

    B)         5 : 2                      

    C)  25 : 3                    

    D)         25 : 4

    Correct Answer: B

    Solution :

    According to Grahams rule \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{{{M}_{2}}}{{{M}_{1}}}}\] or            \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{25}{4}}\Rightarrow \frac{5}{2}\] Hence ratio of diffusion is 5 : 2


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