5 moles of liquid X and 10 moles of liquid Y make a solution having a vapour pressure of 70 torr. The vapour pressures of pure X and Y are 63 torr and 78 torr respectively. Which of the following is true regarding the described solution?
Vapour pressure and Raoult's law
Every question from past board papers on Vapour pressure and Raoult's law, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
Full paper →NEET UG 2021 question paper (official, booklet M4)
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The correct option for the value of vapour pressure of a solution at \(45^\circ C\) with benzene to octane in molar ratio 3 : 2 is :
[At \(45^\circ C\) vapour pressure of benzene is 280 mm Hg and that of octane is 420 mm Hg. Assume Ideal gas]
NEET UG 2016 Phase 1 question paper (official, booklet A)
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Which of the following statements about the composition of the vapour over an ideal 1 : 1 molar mixture of benzene and toluene is correct ? Assume that the temperature is constant at 25°C. (Given, Vapour Pressure Data at 25°C, benzene = 12.8 kPa, toluene = 3.85 kPa)