A) \[N{{H}_{3}}\]
B) \[{{N}_{2}}\]
C) \[C{{O}_{2}}\]
D) \[{{O}_{2}}\]
Correct Answer: A
Solution :
Rate of diffusion, \[r\propto \frac{1}{\sqrt{M}}\]\[{{M}_{N{{H}_{3}}}}=17;\] \[{{M}_{{{N}_{2}}}}=28;\] \[{{M}_{C{{O}_{2}}}}=44\] and \[{{M}_{{{O}_{2}}}}=32\] Lower the molecular mass, higher is the rate of diffusion. Thus, \[N{{H}_{3}}\] has the highest rate of diffusion among the given.
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