Question:
The binary liquid mixture that has positive deviation from Raoult's law is
The binary liquid mixture that has positive deviation from Raoult's law is
Show Hint
Positive deviation = Weaker A-B bonds; Negative deviation = Stronger A-B bonds.
Updated On: Apr 28, 2026
- Chloroform-Acetone
- Chloroethane-Bromoethane
- Phenol-Aniline
- Benzene-Toluene
- Ethanol-Acetone
Show Solution
Verified By Collegedunia
The Correct Option is
Solution and Explanation
Step 1: Concept
Positive deviation occurs when the A-B interactions are weaker than A-A and B-B interactions.
Step 2: Meaning
This leads to a higher vapor pressure than predicted by Raoult's law.
Step 3: Analysis
In Ethanol, there is strong H-bonding. Adding Acetone breaks some of these H-bonds, making it easier for molecules to escape into the vapor phase.
Step 4: Conclusion
Thus, Ethanol-Acetone shows positive deviation. Final Answer: (E)
Positive deviation occurs when the A-B interactions are weaker than A-A and B-B interactions.
Step 2: Meaning
This leads to a higher vapor pressure than predicted by Raoult's law.
Step 3: Analysis
In Ethanol, there is strong H-bonding. Adding Acetone breaks some of these H-bonds, making it easier for molecules to escape into the vapor phase.
Step 4: Conclusion
Thus, Ethanol-Acetone shows positive deviation. Final Answer: (E)
Was this answer helpful?
0
0
Top KEAM Chemistry Questions
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
- $4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :
- Green chemistry deals with
- Neopentyl bromide undergoes dehydrohalogenation to give alkenes even though it has no $\beta$- hydrogen. This is due to
- Plot of $ log\text{ }x/m $ against log $p$ is a straight line inclined at an angle of $ 45{}^\circ $ . When the pressure is $ 0.5 \,arm $ and Freundlich parameter. $ k $ is $ 10 $ , the amount of solute adsorbed per gram of adsorbent will be $ (log\text{ }5=0.6990) $
View More Questions
Top KEAM Types of Solutions Questions
- The hardness of water sample containing $ 0.002 $ mole of magnesium sulphate dissolved in a litre of water is expressed as
- The density of \( 3\,M \) aqueous solution of a solute \( X \) is \( 1.86\,\text{g mL}^{-1} \). The molality of the solution is (Molar mass of solute \( X \) is \( 120\,\text{g mol}^{-1} \))
- Which of the following solvent has highest value of molal elevation constant \( K_b \)?
- Find the mass of an organic compound of molar mass 84, required to prepare 250 ml solution of molarity 0.4
- 3 g of benzoic acid is added to 25 g of benzene. \( \Delta T_f = 2.5\,\text{K} \) and \( K_f \) of benzene is 5. What is the experimental molecular mass of benzoic acid?
View More Questions
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
View More Questions