A solution has a 1: 4 mole ratio of pentane to hexane. The vapour pressures of the pure hydrocarbons at 20^\circ{C} are 440 {\mm} {\Hg} for pentane and 120 {\mm} Hg for hexane. The mole fraction of pentane in the vapour phase would be (2005)

Class 12 NEET Chemistry Solutions Questions

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A solution has a 1: 4 mole ratio of pentane to hexane. The vapour pressures of the pure hydrocarbons at 20°C are 440‌mm‌Hg for pentane and 120‌mm Hg for hexane. The mole fraction of pentane in the vapour phase would be

(2005)

0.200
0.549
0.786
0.478

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