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Thursday, 14 May 2026
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A sample of any of the following substances disappearsafter some time when exposed to ...

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

This phenomenon is called?
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  • A Sublimation
  • B Evaporation
  • C Diffusion
  • D Radiation
Correct Answer: Option A
Explanation:
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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