NEET Chemistry Raoult's Law MCQ Question
Which of the following statements about the behavior of gases and solutions is correct?
The solubility of gases in liquids increases with an increase in temperature.
Raoult's law states that the vapor pressure of a solvent is directly proportional to its mole fraction in a solution.
Dimerization of acetic acid in benzene leads to an increase in the number of solute particles.
The Van't Hoff factor for a solute that dimerizes in solution is equal to two.
Correct Answer
Detailed Explanation
Raoult's law states that the vapor pressure of a solvent is directly proportional to its mole fraction in a solution, as indicated in the context. The solubility of gases actually decreases with an increase in temperature, and dimerization reduces the number of particles, making options A and C incorrect. The Van't Hoff factor for dimerization would be less than two, making option D incorrect.
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