A sample of any of the following substances disappears after some time when exposed to air like camphor, naphthalene, or dry ice. This phenomenon is called?

  • A Sublimation
  • B Evaporation
  • C Diffusion
  • D Radiation

The correct answer is A. Sublimation

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.

Familiar substances that sublime readily include iodine, dry ice, menthol, and camphor.

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