Solutions · NEET Preparation Chemistry
Which of the following liquid pairs exhibits a positive deviation from Raoult's law?
Practice question from Solutions (NEET Preparation Chemistry), with the correct answer and a step-by-step solution.
medium · MCQ · Q-CB7D6C
Which of the following liquid pairs exhibits a positive deviation from Raoult's law?
- A.Acetone and Chloroform
- B.Benzene and Toluene
- C.Ethanol and AcetoneCorrect answer
- D.Chloroform and Benzene
Solution
Ethanol and acetone show positive deviation from Raoult's law. In pure ethanol, molecules are held together by strong hydrogen bonds. Addition of acetone disrupts these hydrogen bonds, resulting in weaker solute-solvent interactions and increased vapor pressure.
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