A) 5 : 1
B) 5 : 2
C) 25 : 3
D) 25 : 4
Correct Answer: B
Solution :
Key Idea: The problem can be solved with the help of Graham's rule. The formula to be used is as follows: \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{{{M}_{2}}}{{{M}_{1}}}}\] Given, \[{{M}_{1}}=4,{{M}_{2}}=25\] Substituting values, \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{25}{4}}=\frac{5}{2}\] \[\therefore \]Ratio of rate of diffusion = 5 : 2You need to login to perform this action.
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