A) \[\upsilon \sqrt{\frac{6}{5}}\]
B) \[\upsilon \sqrt{\frac{5}{6}}\]
C) \[\upsilon \sqrt{\frac{7}{2}}\]
D) \[\upsilon \sqrt{\frac{2}{7}}\]
Correct Answer: D
Solution :
Density of \[{{H}_{2}},\] \[{{\rho }_{H}}=1\] Density of mixture, \[{{\rho }_{m}}=\frac{5\times 1+1\times 16}{5+1}=\frac{21}{6}\] \[\therefore \] \[\frac{{{\upsilon }_{m}}}{{{\upsilon }_{H}}}=\sqrt{\frac{6}{21}}=\sqrt{\frac{2}{7}}\]
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