NEET UG CHEMISTRY MCQ: STATES OF MATTER

A mixture of ${\mathrm{N}_\mathrm{2}}$ and $\mathrm{Ar}$ gases in a cylinder contains $\mathrm{7 g}$of ${\mathrm{N}_\mathrm{2}}$ and $\mathrm{8 g}$ of $\mathrm{Ar}$. If the total pressure of the mixture of
the gases in the cylinder is $\mathrm{27}$ bar, the partial pressure of ${\mathrm{N}_\mathrm{2}}$ is :

[Use atomic masses $\mathrm{N = 14,}\,\mathrm{Ar}\,\mathrm{ = 40}$]