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Air contains $O_2$ and $N_2$ in the ratio of 1 : 4. Calculate the ratio of solubilities in terms of mole fractions of $O_2$ and $N_2$ dissolved in water at atmospheric pressure and room temperature at which Henry’s constant for $O_2$ and $N_2$ are $3.30 \times 10^7$ torr and $6.60 \times 10^7$ torr respectively

1 : 2
Hence (A) is the correct answer.