Question

Identify the reaction which is just the opposite of sublimation.

• A. Deposition
• B. Freezing
• C. Vaporization
• D. Condensation
• E. Melting

Answer 1

The correct option is A

Deposition

Explanation for Correct option:

Option (A) Deposition

• Sublimation is the process of conversion of a solid substance directly into a gaseous state without changing into a liquid state.
• Sublimation is an endothermic process.
• Deposition is the process of conversion of a gaseous substance directly into a solid-state without changing into a liquid state.
• The deposition is an exothermic process.

Explanation for incorrect options:

Option (B) Freezing

• Freezing is the process of conversion of a substance from the liquid state to the solid-state by cooling.
• The temperature at which a liquid becomes a solid is called the freezing point.

Option (C) Vaporization

• Vaporization is the process of conversion of a substance from a liquid phase to a vapour phase.
• The particular temperature at which the conversion occurs is known as the temperature of vaporization.

Option (D) Condensation

• Condensation is the process of conversion of a substance from the vapour phase to a liquid phase.
• The particular temperature at which the conversion occurs is known as the dew point.

Option (E) Melting

• Melting is the process of conversion of a substance from the solid phase to the liquid phase.
• The particular temperature at which the conversion occurs is known as the temperature called the melting point of a substance.

Therefore, option (A) is the correct answer