Solutions

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Q. Which of the following has the highest freezing point depression?
  • A. 0.1 molal NaCl
  • B. 0.1 molal KBr
  • C. 0.1 molal CaCl2
  • D. 0.1 molal glucose
Q. Which of the following has the lowest vapor pressure?
  • A. Pure water
  • B. 0.1 M NaCl solution
  • C. 0.1 M KCl solution
  • D. 0.1 M glucose solution
Q. Which of the following is a consequence of Raoult's Law in a binary solution?
  • A. The total vapor pressure is the sum of the partial pressures.
  • B. The total vapor pressure is always lower than the vapor pressure of the pure solvent.
  • C. The mole fraction of the solute is always greater than that of the solvent.
  • D. The boiling point of the solution is always higher than that of the pure solvent.
Q. Which of the following is a correct application of Raoult's Law?
  • A. Calculating the boiling point elevation
  • B. Determining the freezing point depression
  • C. Finding the vapor pressure of a solution
  • D. Measuring the solubility of a gas in a liquid
Q. Which of the following is a correct unit for concentration?
  • A. Molarity
  • B. Molality
  • C. Mass percent
  • D. All of the above
Q. Which of the following is a correct unit for molality?
  • A. mol/L
  • B. mol/kg
  • C. mol/mL
  • D. mol/1000g
Q. Which of the following is a limitation of Raoult's Law?
  • A. It applies to all solutions.
  • B. It is valid for ideal solutions only.
  • C. It does not consider temperature effects.
  • D. It is applicable to non-volatile solutes only.
Q. Which of the following is a unit of concentration that expresses the amount of solute per volume of solution?
  • A. Molarity
  • B. Molality
  • C. Mole fraction
  • D. Normality
Q. Which of the following is NOT a condition for Raoult's Law to be applicable?
  • A. The solution must be ideal.
  • B. The solute must be non-volatile.
  • C. The components must be miscible in all proportions.
  • D. The solution must be at high pressure.
Q. Which of the following is NOT a condition for Raoult's Law to hold true?
  • A. The solution must be ideal.
  • B. The solute must be volatile.
  • C. The solute and solvent must be miscible.
  • D. The temperature must be constant.
Q. Which of the following is NOT a factor affecting solubility?
  • A. Temperature
  • B. Pressure
  • C. Nature of solute and solvent
  • D. Color of solute
Q. Which of the following is NOT a factor affecting the solubility of a solute in a solvent?
  • A. Temperature
  • B. Pressure
  • C. Nature of solute and solvent
  • D. Color of solute
Q. Which of the following is the correct unit for molality?
  • A. mol/L
  • B. mol/kg
  • C. mol/mL
  • D. mol/1000g
Q. Which of the following is the correct unit for molarity?
  • A. mol/L
  • B. mol/kg
  • C. g/L
  • D. g/mol
Q. Which of the following is true about a saturated solution?
  • A. It contains more solute than can dissolve
  • B. It contains less solute than can dissolve
  • C. It is always at boiling point
  • D. It is always at freezing point
Q. Which of the following solutions has the highest boiling point?
  • A. 0.1 M NaCl
  • B. 0.1 M KCl
  • C. 0.1 M CaCl2
  • D. 0.1 M glucose
Q. Which of the following solutions has the highest concentration?
  • A. 0.1 M NaCl
  • B. 0.2 M KCl
  • C. 0.05 M CaCl2
  • D. 0.3 M MgSO4
Q. Which of the following solutions will have the highest boiling point?
  • A. 0.1 M NaCl
  • B. 0.1 M KCl
  • C. 0.1 M glucose
  • D. 0.1 M MgCl2
Q. Which of the following solutions will have the lowest freezing point?
  • A. 0.1 M NaCl
  • B. 0.1 M KBr
  • C. 0.1 M MgCl2
  • D. 0.1 M glucose
Q. Which of the following solutions will have the lowest vapor pressure?
  • A. 0.1 M NaCl
  • B. 0.1 M KBr
  • C. 0.1 M MgCl2
  • D. 0.1 M glucose
Q. Which of the following statements about colligative properties is true?
  • A. They depend on the identity of the solute
  • B. They depend on the number of solute particles
  • C. They are independent of temperature
  • D. They are only applicable to ionic compounds
Q. Which of the following statements about ideal solutions is true?
  • A. They obey Raoult's law at all concentrations
  • B. They have a constant boiling point
  • C. They have a constant density
  • D. They do not exhibit colligative properties
Q. Which of the following statements about molarity is true?
  • A. It changes with temperature.
  • B. It is independent of temperature.
  • C. It is defined as moles of solute per liter of solvent.
  • D. It is always equal to molality.
Q. Which of the following statements about solutions is incorrect?
  • A. Solutes lower the vapor pressure of solvents.
  • B. Colligative properties depend on the type of solute.
  • C. Boiling point elevation is a colligative property.
  • D. Freezing point depression is a colligative property.
Q. Which of the following statements is true according to Raoult's Law?
  • A. The vapor pressure of a solution is always higher than that of the pure solvent.
  • B. The vapor pressure of a solution is lower than that of the pure solvent.
  • C. Raoult's Law applies only to ideal solutions.
  • D. The mole fraction of solute affects the vapor pressure of the solvent.
Q. Which of the following statements is true regarding a saturated solution?
  • A. It contains more solute than solvent.
  • B. It is in dynamic equilibrium.
  • C. It can dissolve more solute.
  • D. It is always at room temperature.
Q. Which of the following statements is true regarding colligative properties?
  • A. They depend on the identity of the solute
  • B. They depend on the concentration of the solute
  • C. They depend on the nature of the solvent
  • D. They depend on the number of solute particles
Q. Which of the following statements is true regarding ideal solutions?
  • A. They obey Raoult's Law at all concentrations.
  • B. They do not exhibit any deviation from Raoult's Law.
  • C. They have a constant boiling point.
  • D. They have a variable composition.
Q. Which of the following statements is true regarding non-ideal solutions?
  • A. They obey Raoult's Law perfectly.
  • B. They show positive or negative deviations from Raoult's Law.
  • C. Their vapor pressure is always higher than predicted by Raoult's Law.
  • D. They cannot be formed by mixing two volatile liquids.
Q. Which of the following statements is true regarding Raoult's Law?
  • A. It applies to all types of solutions.
  • B. It is only applicable to ideal solutions.
  • C. It can be used for any solute-solvent combination.
  • D. It is not applicable to volatile solutes.
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