What is the ratio of densities of 2 gases, O2 & N2, having partial pre – McqOptions

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1.	What is the ratio of densities of 2 gases, O₂ & N₂, having partial pressures in the ratio 2:3?
A.	16/21
B.	12/7
C.	21/16
D.	7/12
Answer» B. 12/7

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