A) \[CO,\text{ }N{{O}_{2}}\]
B) \[NO,\text{ }{{C}_{2}}{{H}_{6}}\]
C) \[N{{O}_{2}},\text{ }C{{O}_{2}}\]
D) \[N{{H}_{3}},\text{ }P{{H}_{3}}\]
Correct Answer: B
Solution :
Molecular mass of \[NO=30\] Molecular mass of\[{{C}_{6}}{{H}_{6}}=30\] The molecular masses of NO and\[{{C}_{6}}{{H}_{6}}\]are same hence these gases will diffuse at the same rate through a porous plug.
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