The correct option for the value of vapour pressure of a solution at 45°C with benzene to octane in molar ratio 3 ∶ 2 is :
[At 45°C vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]
1
350 mm of Hg
2
160 mm of Hg
3
168 mm of Hg
4
336 mm of Hg