Multiple choice

The process in which a solid substance on being heated, changes directly into the gaseous form, is known as

  1. dissociation

  2. dissolution

  3. sublimation

  4. evaporation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sublimation is the phase transition where a substance changes directly from a solid to a gas without passing through the liquid state. Common examples include dry ice and iodine.

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