Question

When heated, solid iodine sublimes i.e. it directly changes into a gaseous state without converting to liquid state. Which of the following is NOT true for iodine sublimation?

• A. The change is fast.
• B. The change is physical.
• C. The change is chemical.
• D. The change is reversible.

Answer 1

The correct option is C The change is chemical.

In sublimation of iodine, a change of state occurs from solid to gas without converting to liquid. It is a physical change which happens quickly, and is reversible too.