JEE CHEMISTRY UNIT 05
QUIZ NO 4
TOTAL QUESTIONS = 20
1. Which of the following is a colligative property?
A. Freezing point depression
B. Surface tension
C. Viscosity
D. Refractive index
2. Which of the following is a colligative property?
A. Freezing point depression
B. Viscosity
C. Refractive index
D. Surface tension
3. The elevation in boiling point is directly proportional to
A. Molarity
B. Normality
C. Molality
D. Density
4. The elevation in boiling point is proportional to
A. Volume
B. Molality
C. Mole fraction
D. Pressure
5. The van’t Hoff factor (i) is greater than 1 for
A. Colloidal solutions
B. Non-electrolytes
C. Electrolytes
D. Pure solvents
6. Which of the following solutions shows positive deviation from Raoult's law?
A. Ethanol-water
B. Benzene-toluene
C. Acetone-benzene
D. Chloroform-carbon tetrachloride
7. The molality of a solution is defined as
A. Moles of solute per kg of solvent
B. Moles of solute per gram of solvent
C. Moles of solute per liter of solution
D. Moles of solute per mole of solvent
8. Which of the following has the highest osmotic pressure?
A. 0.1 M NaCl
B. 0.1 M MgCl2
C. 0.1 M Urea
D. 0.1 M Glucose
9. Which solution will have the lowest freezing point?
A. 1 M MgCl2
B. 1 M glucose
C. 1 M NaCl
D. 1 M BaCl2
10. The relation π = CRT represents
A. Boiling point elevation
B. Vapor pressure lowering
C. Freezing point depression
D. Osmotic pressure
11. Which of the following exhibits colligative properties?
A. Glucose
B. Sucrose
C. NaCl
D. All of these
12. Which of the following solutions has the highest boiling point?
A. 0.1 M BaCl2
B. 0.1 M Urea
C. 0.1 M NaCl
D. 0.1 M Glucose
13. The vapor pressure of a solution decreases due to
A. Decrease in solute vapor pressure
B. Increase in temperature
C. Increase in solute vapor pressure
D. Presence of a non-volatile solute
14. A solution showing negative deviation from Raoult’s law indicates
A. Strong intermolecular forces
B. Ideal behavior
C. No intermolecular forces
D. Weak intermolecular forces
15. The relation between osmotic pressure (π) and molar concentration (C) is
A. π = C/RT
B. π = R/CT
C. π = CRT
D. π = C/R
16. Osmotic pressure is proportional to
A. Concentration
B. Molar mass
C. Temperature
D. Both A and C
17. Which of the following properties is not colligative?
A. Boiling point elevation
B. Vapor pressure lowering
C. Freezing point depression
D. Viscosity
18. The boiling point of a solution is higher than that of the pure solvent because
A. The vapor pressure of the solution is lower
B. The solvent forms an azeotrope
C. The vapor pressure of the solution is higher
D. The solute is non-volatile
19. Which of the following has the highest van't Hoff factor?
A. CaCl2
B. MgCl2
C. NaCl
D. Glucose
20. Which of the following is an example of an azeotrope?
A. Acetone-benzene
B. Chloroform-carbon tetrachloride
C. Ethanol-water
D. Benzene-toluene
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