Solubility Product MDCAT MCQs with Answers

The solubility product constant (Ksp) is:
A) The product of the concentrations of the ions in a saturated solution
B) The sum of the concentrations of the ions in a saturated solution
C) The product of the molar masses of the ions in a solution
D) The concentration of the solute in the solution

Which of the following salts will have the highest solubility in water?
A) The salt with the lowest Ksp value
B) The salt with the highest Ksp value
C) The salt with the highest molar mass
D) The salt with the lowest molar mass

When the ionic product exceeds the solubility product, the solution will:
A) Form a precipitate
B) Become unsaturated
C) Remain saturated
D) Remain unchanged

For a saturated solution of a sparingly soluble salt, the relationship between the ionic product and Ksp is:
A) Ionic product < Ksp
B) Ionic product = Ksp
C) Ionic product > Ksp
D) No relationship exists

Which of the following is true for a salt with a very small Ksp?
A) It is highly soluble
B) It is sparingly soluble
C) It is completely insoluble
D) Its solubility is independent of temperature

If the concentration of one of the ions in a saturated solution is doubled, the solubility of the salt will:
A) Increase
B) Decrease
C) Remain unchanged
D) Depend on the other ion

The solubility product (Ksp) of
AgCl
AgCl is affected by:
A) The addition of a common ion
B) The addition of a non-common ion
C) The addition of a catalyst
D) The pressure

The molar solubility of a salt is directly related to:
A) The square root of Ksp for a salt with a 1:1 ion ratio
B) The Ksp value for a salt with a 1:1 ion ratio
C) The cube root of Ksp for a salt with a 1:2 ion ratio
D) The square of Ksp for a salt with a 1:1 ion ratio

When a common ion is added to a solution of a sparingly soluble salt, the solubility of the salt:
A) Increases
B) Decreases
C) Remains the same
D) Doubles

Which of the following salts is least soluble in water?
A) The one with the highest Ksp
B) The one with the lowest Ksp
C) The one with the highest molar solubility
D) The one with the highest lattice energy

When the concentration of one ion in a solution increases, the solubility of the salt:
A) Increases
B) Decreases
C) Remains the same
D) Depends on the temperature

The common ion effect:
A) Decreases the solubility of a salt
B) Increases the solubility of a salt
C) Has no effect on the solubility
D) Affects only gaseous solubility

The solubility of a salt is least affected by:
A) Temperature
B) The common ion effect
C) Pressure
D) Concentration of one ion

Which factor does not affect the solubility product (Ksp) of a salt?
A) Temperature
B) Presence of a common ion
C) pH of the solution
D) Addition of a catalyst

The solubility product (Ksp) of a salt is primarily dependent on:
A) Temperature
B) Pressure
C) The molar mass of the ions
D) The presence of other salts in the solution

For a given sparingly soluble salt, the solubility in pure water is:
A) Higher than in a solution containing a common ion
B) Lower than in a solution containing a common ion
C) Independent of the common ion effect
D) Always equal to the Ksp value

Which salt has the highest solubility in water?
A) The one with the highest Ksp value
B) The one with the lowest Ksp value
C) The one with the smallest ionic radius
D) The one with the largest ionic radius

The solubility of a sparingly soluble salt in the presence of a common ion is:
A) Higher than in pure water
B) Lower than in pure water
C) The same as in pure water
D) Dependent on the temperature

Which of the following salts will precipitate first when the concentration of ions is increased?
A) The salt with the highest Ksp
B) The salt with the lowest Ksp
C) The salt with the highest molar mass
D) The salt with the lowest molar mass

Which of the following compounds will have the lowest solubility in water?
A) The one with the lowest Ksp
B) The one with the highest Ksp
C) The one with the smallest cation
D) The one with the largest anion

In the presence of a common ion, the solubility of a salt:
A) Increases
B) Decreases
C) Remains the same
D) Doubles