A) \[\frac{1}{76}\]
B) \[\frac{1}{7.6}\]
C) \[\frac{1}{38}\]
D) \[\frac{1}{10}\]
Correct Answer: A
Solution :
According to Raoult's law: Mole fraction of solute \[=\frac{P-{{P}_{s}}}{P}\] \[=\frac{760-750}{760}=\frac{10}{760}=\frac{1}{76}\]
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