Vapour pressure of pure 'A' is 70 mm of Hg at 25 ° C. It forms an ideal solution with 'B'…
Chemistry · NEET · NTA Exams — Solutions
Vapour pressure of pure 'A' is 70 mm of Hg at 25°C. It forms an ideal solution with 'B' in which mole fraction of A is 0.8. If the vapour pressure of the solution is 84 mm of Hg at 25°C, the vapour pressure of pure 'B ' at 25°C is:
- 28 mm
- 56 mm
- 70 mm
- 140 mm
Answer
(D) 140 mm
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