A) 2 : 3
B) 3 : 4
C) 1 : 2
D) 1 : 6
Correct Answer: C
Solution :
\[{{U}_{av}}\propto \frac{1}{\sqrt{M}}\] \[\frac{{{U}_{av}}(S{{O}_{2}})}{{{U}_{av}}(C{{H}_{4}})}=\sqrt{\frac{{{M}_{C{{H}_{4}}}}}{{{M}_{S{{O}_{2}}}}}}\] \[{{M}_{S{{O}_{2}}}}=32+2\times 16=64\] \[{{M}_{C{{H}_{4}}}}=12+4\times 1=16\] \[\therefore \] \[\frac{{{U}_{av}}(S{{O}_{2}})}{{{U}_{av}}(C{{H}_{4}})}=\sqrt{\frac{16}{64}}=\frac{1}{2}\]
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