CHEM 103 Module 6: Solutions, Concentration, and Colligative
Properties 2026/2027 UPDATE Geneva College
1. What name is given to a solution where water acts as the solvent?
A. Aqueous solution
B. Non-polar solution
C. Gaseous solution
D. Solid solution
Answer: A
Rationale: An aqueous solution is one in which water is the dissolving medium (the
solvent).
2. In a solution of sugar and water, what term describes the sugar?
A. Solvent
B. Suspension
C. Catalyst
D. Solute
Answer: D
Rationale: The solute is the substance being dissolved, while the solvent is the substance
doing the dissolving.
,3. What is the standard unit for Molarity (M)?
A. Moles of solute / Kilograms of solvent
B. Grams of solute / Liters of solution
C. Moles of solute / Liters of solution
D. Moles of solute / Liters of solvent
Answer: C
Rationale: Molarity is defined as the number of moles of solute per liter of the total
solution.
4. A solution that cannot dissolve any more solute at its current temperature is
called:
A. Unsaturated
B. Dilute
C. Saturated
D. Supersaturated
Answer: C
Rationale: A saturated solution contains the maximum amount of dissolved solute possible
at a given temperature.
5. Which type of solution is unstable and contains more solute than normally
possible at a given temperature?
A. Supersaturated
B. Saturated
C. Unsaturated
D. Isotonic
Answer: A
Rationale: Supersaturated solutions are created by dissolving solute at high temperatures
and cooling slowly; they are unstable and can crystallize easily.
, 6. Which law states that the solubility of a gas in a liquid is proportional to the
partial pressure of that gas above the liquid?
A. Raoult’s Law
B. Dalton’s Law
C. Henry’s Law
D. Boyle’s Law
Answer: C
Rationale: Henry’s Law establishes the relationship between gas pressure and solubility in
a liquid solvent.
7. How does the solubility of most gases in liquids change as the temperature
increases?
A. It increases
B. It stays the same
C. It decreases
D. It fluctuates randomly
Answer: C
Rationale: As temperature increases, the kinetic energy of gas molecules increases,
allowing them to escape the liquid phase more easily, thus decreasing solubility.
8. For most solid solutes, how does increasing the temperature affect solubility
in water?
A. It decreases solubility
B. It has no effect
C. It increases solubility
D. It makes the solution immiscible
Answer: C
Rationale: Increased temperature usually provides the energy needed to break solute-
solute bonds, allowing more solid to dissolve in water.
Properties 2026/2027 UPDATE Geneva College
1. What name is given to a solution where water acts as the solvent?
A. Aqueous solution
B. Non-polar solution
C. Gaseous solution
D. Solid solution
Answer: A
Rationale: An aqueous solution is one in which water is the dissolving medium (the
solvent).
2. In a solution of sugar and water, what term describes the sugar?
A. Solvent
B. Suspension
C. Catalyst
D. Solute
Answer: D
Rationale: The solute is the substance being dissolved, while the solvent is the substance
doing the dissolving.
,3. What is the standard unit for Molarity (M)?
A. Moles of solute / Kilograms of solvent
B. Grams of solute / Liters of solution
C. Moles of solute / Liters of solution
D. Moles of solute / Liters of solvent
Answer: C
Rationale: Molarity is defined as the number of moles of solute per liter of the total
solution.
4. A solution that cannot dissolve any more solute at its current temperature is
called:
A. Unsaturated
B. Dilute
C. Saturated
D. Supersaturated
Answer: C
Rationale: A saturated solution contains the maximum amount of dissolved solute possible
at a given temperature.
5. Which type of solution is unstable and contains more solute than normally
possible at a given temperature?
A. Supersaturated
B. Saturated
C. Unsaturated
D. Isotonic
Answer: A
Rationale: Supersaturated solutions are created by dissolving solute at high temperatures
and cooling slowly; they are unstable and can crystallize easily.
, 6. Which law states that the solubility of a gas in a liquid is proportional to the
partial pressure of that gas above the liquid?
A. Raoult’s Law
B. Dalton’s Law
C. Henry’s Law
D. Boyle’s Law
Answer: C
Rationale: Henry’s Law establishes the relationship between gas pressure and solubility in
a liquid solvent.
7. How does the solubility of most gases in liquids change as the temperature
increases?
A. It increases
B. It stays the same
C. It decreases
D. It fluctuates randomly
Answer: C
Rationale: As temperature increases, the kinetic energy of gas molecules increases,
allowing them to escape the liquid phase more easily, thus decreasing solubility.
8. For most solid solutes, how does increasing the temperature affect solubility
in water?
A. It decreases solubility
B. It has no effect
C. It increases solubility
D. It makes the solution immiscible
Answer: C
Rationale: Increased temperature usually provides the energy needed to break solute-
solute bonds, allowing more solid to dissolve in water.
