At sea level, the dry air mass percentage composition is given as nitrogen gas: $70.0$, oxygen gas: $27.0$, and argon gas: $3.0$. If the total pressure is $1.15 \ atm$, calculate the ratio of the following respectively:
$(i)$ partial pressure of nitrogen gas to partial pressure of oxygen gas
$(ii)$ partial pressure of oxygen gas to partial pressure of argon gas
(Given: Molar mass of $N_2$, $O_2$, and $Ar$ are $28$, $32$, and $40 \ g \ mol^{-1}$ respectively)

  • A
    $4.26, 19.3$
  • B
    $2.59, 11.85$
  • C
    $5.46, 17.8$
  • D
    $2.96, 11.25$

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