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NEET Sample Paper NEET Sample Test Paper-83

  • question_answer
    Ratio of rate of diffusion of He and \[C{{H}_{4}}\] under identical condition of pressure and temperature is

    A)  4                                

    B)  2

    C)  1                                

    D)  0.5

    Correct Answer: B

    Solution :

    According to Graham?s law of diffusion, we know that \[{{r}_{dif}}\propto \frac{1}{\sqrt{M}},\,\,\frac{{{r}_{He}}}{{{r}_{C{{H}_{4}}}}}=\frac{{{M}_{C{{H}_{4}}}}}{{{M}_{He}}}=\sqrt{\frac{16}{4}}=2\]


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