---

Question 1:

What is solubility?

A) The ability of a substance to dissolve in another substance
B) The ability of a substance to evaporate
C) The ability of a substance to condense
D) The ability of a substance to freeze

Show Answer

Explanation: The correct answer is A) The ability of a substance to dissolve in another substance. Solubility refers to the maximum amount of solute that can dissolve in a given amount of solvent at a specified temperature and pressure. It represents the ability of a substance (solute) to form a homogeneous solution with another substance (solvent).

---

Question 2:

Which of the following factors affect the solubility of a solute?

A) Temperature
B) Pressure
C) Nature of solute and solvent
D) All of the above

Show Answer

Explanation: The correct answer is D) All of the above. The solubility of a solute is affected by various factors, including temperature, pressure, and the nature of the solute and solvent. Increasing temperature generally increases solubility for most solutes, while pressure affects the solubility of gases. Additionally, the chemical properties and intermolecular forces between the solute and solvent play a significant role in determining solubility.

---

Question 3:

What is the term used to describe a solution that has reached its maximum solute concentration?

A) Unsaturated solution
B) Saturated solution
C) Supersaturated solution
D) Dilute solution

Show Answer

Explanation: The correct answer is B) Saturated solution. A saturated solution is a solution that has reached its maximum solute concentration under a given set of conditions. In a saturated solution, the rate of dissolution of solute particles is balanced by the rate of recrystallization, resulting in a dynamic equilibrium between the dissolved and undissolved solute.

---

Question 4:

What is an unsaturated solution?

A) A solution with a high concentration of solute
B) A solution with a low concentration of solute
C) A solution that cannot dissolve any more solute
D) A solution that can dissolve more solute

Show Answer

Explanation: The correct answer is D) A solution that can dissolve more solute. An unsaturated solution is a solution that can dissolve additional solute at a given temperature and pressure. It has a lower concentration of solute compared to the maximum solubility, and there is still room for more solute to dissolve.

---

Question 5:

What is the term used to describe a solution that contains more solute than it can normally hold at a given temperature and pressure?

A) Saturated solution
B) Unsaturated solution
C) Supersaturated solution
D) Dilute solution

Show Answer

Explanation: The correct answer is C) Supersaturated solution. A supersaturated solution is a solution that contains more solute than it can normally hold at a given temperature and pressure. This occurs when thesaturation point is exceeded by adding additional solute to a solution and carefully manipulating the conditions such as temperature or pressure. Supersaturated solutions are unstable and can be triggered to precipitate excess solute by introducing a seed crystal or disturbing the solution, causing the excess solute to come out of solution.