JEE Main Chemistry question

The vapour pressure of a pure liquid is 40 mm Hg at 310 K. The vapour pressure of this liquid in a solution with liquid is 32 mm Hg. What is the mole fraction of in the solution if it obeys the Raoult's law?

• (A)0.5
• (B)0.6
• (C)0.7
• (D)0.8Correct