Multiple choice general knowledge science & technology

The property of a substance to absorb moisture from the air on exposure is called

  1. osmosis

  2. deliquescence

  3. efflorescence

  4. desiccation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Deliquescence occurs when a hygroscopic substance absorbs moisture from air and dissolves in it (e.g., sodium hydroxide pellets). Efflorescence is the opposite - losing water to become powdery. Osmosis involves solvent movement through membranes. Desiccation actively removes moisture.

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