NextMockಪರೀಕ್ಷೆಗಳನ್ನು ಹುಡುಕಿ, ಉದಾ. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2019

UPPCS · ಪ್ರಶ್ನೆ 124

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

  1. Sublimation
  2. Evaporation
  3. Diffusion
  4. Radiation
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ

ಉತ್ತರ: (A) Sublimation

ವಿವರಣೆ

Sublimation is the direct change from solid to vapour without melting, as seen in camphor, naphthalene and dry ice (solid CO2).