A) \[{{H}_{2}}\]
B) \[{{N}_{2}}\]
C) \[He\]
D) \[{{O}_{2}}\]
Correct Answer: A
Solution :
\[v=\sqrt{\frac{\gamma RT}{M}}\]Þ \[v\propto \frac{1}{\sqrt{M}}\]. Since \[M\] is minimum for \[{{H}_{2}}\] so sound velocity is maximum in H2.
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