Which one of the following substances undergoes sublimation?

Correct option is B

The correct answer is (B) Iodine.

• Sublimation is the process in which a substance changes directly from a solid to a gas without passing through the liquid phase. Iodine is one such substance that undergoes sublimation.

Information Booster

• Sublimation: The transition of a substance directly from a solid to a gas.
• Examples of substances that sublime: Iodine, dry ice (solid CO₂), camphor, and naphthalene.
• Non-sublimating substances: Nitrogen, sucrose, calcium, and most other substances do not undergo sublimation under normal conditions.